diff --git a/packages/react-dom/src/__tests__/ReactDOMFiberAsync-test.internal.js b/packages/react-dom/src/__tests__/ReactDOMFiberAsync-test.internal.js
index 68e9ae3e722f7..9ed2c641cdd1f 100644
--- a/packages/react-dom/src/__tests__/ReactDOMFiberAsync-test.internal.js
+++ b/packages/react-dom/src/__tests__/ReactDOMFiberAsync-test.internal.js
@@ -720,16 +720,14 @@ describe('ReactDOMFiberAsync', () => {
 
       let root = ReactDOM.unstable_createRoot(container);
       root.render(
-        <React.Suspense maxDuration={1000} fallback={'Loading'}>
-          Initial
-        </React.Suspense>,
+        <React.Suspense fallback={'Loading'}>Initial</React.Suspense>,
       );
 
       Scheduler.flushAll();
       expect(container.textContent).toBe('Initial');
 
       root.render(
-        <React.Suspense maxDuration={1000} fallback={'Loading'}>
+        <React.Suspense fallback={'Loading'}>
           <Suspend />
         </React.Suspense>,
       );
diff --git a/packages/react-dom/src/__tests__/ReactDOMServerPartialHydration-test.internal.js b/packages/react-dom/src/__tests__/ReactDOMServerPartialHydration-test.internal.js
index b0e62e2fc789c..36f444139750a 100644
--- a/packages/react-dom/src/__tests__/ReactDOMServerPartialHydration-test.internal.js
+++ b/packages/react-dom/src/__tests__/ReactDOMServerPartialHydration-test.internal.js
@@ -363,7 +363,7 @@ describe('ReactDOMServerPartialHydration', () => {
         <div>
           <Suspense fallback="Loading...">
             <span ref={ref} className={className}>
-              <Suspense maxDuration={200}>
+              <Suspense>
                 <Child text={text} />
               </Suspense>
             </span>
@@ -703,7 +703,7 @@ describe('ReactDOMServerPartialHydration', () => {
     expect(ref.current).toBe(span);
   });
 
-  it('replaces the fallback within the maxDuration if there is a nested suspense', async () => {
+  it('replaces the fallback within the suspended time if there is a nested suspense', async () => {
     let suspend = false;
     let promise = new Promise(resolvePromise => {});
     let ref = React.createRef();
@@ -724,7 +724,7 @@ describe('ReactDOMServerPartialHydration', () => {
     function App() {
       return (
         <div>
-          <Suspense fallback="Loading..." maxDuration={100}>
+          <Suspense fallback="Loading...">
             <span ref={ref}>
               <Child />
             </span>
@@ -751,7 +751,7 @@ describe('ReactDOMServerPartialHydration', () => {
     let root = ReactDOM.unstable_createRoot(container, {hydrate: true});
     root.render(<App />);
     Scheduler.flushAll();
-    // This will have exceeded the maxDuration so we should timeout.
+    // This will have exceeded the suspended time so we should timeout.
     jest.advanceTimersByTime(500);
     // The boundary should longer be suspended for the middle content
     // even though the inner boundary is still suspended.
@@ -762,7 +762,7 @@ describe('ReactDOMServerPartialHydration', () => {
     expect(ref.current).toBe(span);
   });
 
-  it('replaces the fallback within the maxDuration if there is a nested suspense in a nested suspense', async () => {
+  it('replaces the fallback within the suspended time if there is a nested suspense in a nested suspense', async () => {
     let suspend = false;
     let promise = new Promise(resolvePromise => {});
     let ref = React.createRef();
@@ -784,7 +784,7 @@ describe('ReactDOMServerPartialHydration', () => {
       return (
         <div>
           <Suspense fallback="Another layer">
-            <Suspense fallback="Loading..." maxDuration={100}>
+            <Suspense fallback="Loading...">
               <span ref={ref}>
                 <Child />
               </span>
@@ -812,7 +812,7 @@ describe('ReactDOMServerPartialHydration', () => {
     let root = ReactDOM.unstable_createRoot(container, {hydrate: true});
     root.render(<App />);
     Scheduler.flushAll();
-    // This will have exceeded the maxDuration so we should timeout.
+    // This will have exceeded the suspended time so we should timeout.
     jest.advanceTimersByTime(500);
     // The boundary should longer be suspended for the middle content
     // even though the inner boundary is still suspended.
diff --git a/packages/react-dom/src/__tests__/ReactDOMSuspensePlaceholder-test.js b/packages/react-dom/src/__tests__/ReactDOMSuspensePlaceholder-test.js
index 14e02d396da7a..7a5df7629e088 100644
--- a/packages/react-dom/src/__tests__/ReactDOMSuspensePlaceholder-test.js
+++ b/packages/react-dom/src/__tests__/ReactDOMSuspensePlaceholder-test.js
@@ -74,12 +74,12 @@ describe('ReactDOMSuspensePlaceholder', () => {
     ];
     function App() {
       return (
-        <Suspense maxDuration={500} fallback={<Text text="Loading..." />}>
+        <Suspense fallback={<Text text="Loading..." />}>
           <div ref={divs[0]}>
             <Text text="A" />
           </div>
           <div ref={divs[1]}>
-            <AsyncText ms={1000} text="B" />
+            <AsyncText ms={500} text="B" />
           </div>
           <div style={{display: 'block'}} ref={divs[2]}>
             <Text text="C" />
@@ -92,7 +92,7 @@ describe('ReactDOMSuspensePlaceholder', () => {
     expect(divs[1].current.style.display).toEqual('none');
     expect(divs[2].current.style.display).toEqual('none');
 
-    await advanceTimers(1000);
+    await advanceTimers(500);
 
     expect(divs[0].current.style.display).toEqual('');
     expect(divs[1].current.style.display).toEqual('');
@@ -103,9 +103,9 @@ describe('ReactDOMSuspensePlaceholder', () => {
   it('hides and unhides timed out text nodes', async () => {
     function App() {
       return (
-        <Suspense maxDuration={500} fallback={<Text text="Loading..." />}>
+        <Suspense fallback={<Text text="Loading..." />}>
           <Text text="A" />
-          <AsyncText ms={1000} text="B" />
+          <AsyncText ms={500} text="B" />
           <Text text="C" />
         </Suspense>
       );
@@ -113,7 +113,7 @@ describe('ReactDOMSuspensePlaceholder', () => {
     ReactDOM.render(<App />, container);
     expect(container.textContent).toEqual('Loading...');
 
-    await advanceTimers(1000);
+    await advanceTimers(500);
 
     expect(container.textContent).toEqual('ABC');
   });
@@ -137,10 +137,10 @@ describe('ReactDOMSuspensePlaceholder', () => {
 
       function App() {
         return (
-          <Suspense maxDuration={500} fallback={<Text text="Loading..." />}>
+          <Suspense fallback={<Text text="Loading..." />}>
             <Sibling>Sibling</Sibling>
             <span>
-              <AsyncText ms={1000} text="Async" />
+              <AsyncText ms={500} text="Async" />
             </span>
           </Suspense>
         );
@@ -158,7 +158,7 @@ describe('ReactDOMSuspensePlaceholder', () => {
         '<span style="display: none;">Sibling</span><span style="display: none;"></span>Loading...',
       );
 
-      await advanceTimers(1000);
+      await advanceTimers(500);
 
       expect(container.innerHTML).toEqual(
         '<span style="display: inline;">Sibling</span><span style="">Async</span>',
diff --git a/packages/react-reconciler/src/ReactFiberBeginWork.js b/packages/react-reconciler/src/ReactFiberBeginWork.js
index 3c5e0fddae0e1..695822811e2f8 100644
--- a/packages/react-reconciler/src/ReactFiberBeginWork.js
+++ b/packages/react-reconciler/src/ReactFiberBeginWork.js
@@ -156,6 +156,7 @@ let didWarnAboutContextTypeOnFunctionComponent;
 let didWarnAboutGetDerivedStateOnFunctionComponent;
 let didWarnAboutFunctionRefs;
 export let didWarnAboutReassigningProps;
+let didWarnAboutMaxDuration;
 
 if (__DEV__) {
   didWarnAboutBadClass = {};
@@ -164,6 +165,7 @@ if (__DEV__) {
   didWarnAboutGetDerivedStateOnFunctionComponent = {};
   didWarnAboutFunctionRefs = {};
   didWarnAboutReassigningProps = false;
+  didWarnAboutMaxDuration = false;
 }
 
 export function reconcileChildren(
@@ -1408,6 +1410,19 @@ function updateSuspenseComponent(
     workInProgress.effectTag &= ~DidCapture;
   }
 
+  if (__DEV__) {
+    if ('maxDuration' in nextProps) {
+      if (!didWarnAboutMaxDuration) {
+        didWarnAboutMaxDuration = true;
+        warning(
+          false,
+          'maxDuration has been removed from React. ' +
+            'Remove the maxDuration prop.',
+        );
+      }
+    }
+  }
+
   // This next part is a bit confusing. If the children timeout, we switch to
   // showing the fallback children in place of the "primary" children.
   // However, we don't want to delete the primary children because then their
diff --git a/packages/react-reconciler/src/ReactFiberUnwindWork.js b/packages/react-reconciler/src/ReactFiberUnwindWork.js
index 2d76a3b6b5307..fe732abaffa5f 100644
--- a/packages/react-reconciler/src/ReactFiberUnwindWork.js
+++ b/packages/react-reconciler/src/ReactFiberUnwindWork.js
@@ -229,16 +229,12 @@ function throwException(
             break;
           }
         }
-        let timeoutPropMs = workInProgress.pendingProps.maxDuration;
-        if (typeof timeoutPropMs === 'number') {
-          if (timeoutPropMs <= 0) {
-            earliestTimeoutMs = 0;
-          } else if (
-            earliestTimeoutMs === -1 ||
-            timeoutPropMs < earliestTimeoutMs
-          ) {
-            earliestTimeoutMs = timeoutPropMs;
-          }
+        const defaultSuspenseTimeout = 150;
+        if (
+          earliestTimeoutMs === -1 ||
+          defaultSuspenseTimeout < earliestTimeoutMs
+        ) {
+          earliestTimeoutMs = defaultSuspenseTimeout;
         }
       }
       // If there is a DehydratedSuspenseComponent we don't have to do anything because
diff --git a/packages/react-reconciler/src/__tests__/ReactLazy-test.internal.js b/packages/react-reconciler/src/__tests__/ReactLazy-test.internal.js
index 4e80064514006..cd91c40574072 100644
--- a/packages/react-reconciler/src/__tests__/ReactLazy-test.internal.js
+++ b/packages/react-reconciler/src/__tests__/ReactLazy-test.internal.js
@@ -119,8 +119,8 @@ describe('ReactLazy', () => {
       return <Text text="Bar" />;
     }
 
-    const promiseForFoo = delay(1000).then(() => fakeImport(Foo));
-    const promiseForBar = delay(2000).then(() => fakeImport(Bar));
+    const promiseForFoo = delay(100).then(() => fakeImport(Foo));
+    const promiseForBar = delay(500).then(() => fakeImport(Bar));
 
     const LazyFoo = lazy(() => promiseForFoo);
     const LazyBar = lazy(() => promiseForBar);
@@ -138,13 +138,13 @@ describe('ReactLazy', () => {
     expect(Scheduler).toFlushAndYield(['Loading...']);
     expect(root).toMatchRenderedOutput(null);
 
-    jest.advanceTimersByTime(1000);
+    jest.advanceTimersByTime(100);
     await promiseForFoo;
 
     expect(Scheduler).toFlushAndYield(['Foo', 'Loading...']);
     expect(root).toMatchRenderedOutput(null);
 
-    jest.advanceTimersByTime(1000);
+    jest.advanceTimersByTime(500);
     await promiseForBar;
 
     expect(Scheduler).toFlushAndYield(['Foo', 'Bar']);
diff --git a/packages/react-reconciler/src/__tests__/ReactSuspense-test.internal.js b/packages/react-reconciler/src/__tests__/ReactSuspense-test.internal.js
index 913cbfbd32c4b..14fe319b7fe43 100644
--- a/packages/react-reconciler/src/__tests__/ReactSuspense-test.internal.js
+++ b/packages/react-reconciler/src/__tests__/ReactSuspense-test.internal.js
@@ -140,10 +140,10 @@ describe('ReactSuspense', () => {
     // Render two sibling Suspense components
     const root = ReactTestRenderer.create(
       <React.Fragment>
-        <Suspense maxDuration={1000} fallback={<Text text="Loading A..." />}>
+        <Suspense fallback={<Text text="Loading A..." />}>
           <AsyncText text="A" ms={5000} />
         </Suspense>
-        <Suspense maxDuration={3000} fallback={<Text text="Loading B..." />}>
+        <Suspense fallback={<Text text="Loading B..." />}>
           <AsyncText text="B" ms={6000} />
         </Suspense>
       </React.Fragment>,
@@ -211,7 +211,7 @@ describe('ReactSuspense', () => {
     }
 
     const root = ReactTestRenderer.create(
-      <Suspense maxDuration={1000} fallback={<Text text="Loading..." />}>
+      <Suspense fallback={<Text text="Loading..." />}>
         <Async />
         <Text text="Sibling" />
       </Suspense>,
@@ -272,7 +272,7 @@ describe('ReactSuspense', () => {
   it('only captures if `fallback` is defined', () => {
     const root = ReactTestRenderer.create(
       <Suspense fallback={<Text text="Loading..." />}>
-        <Suspense maxDuration={100}>
+        <Suspense>
           <AsyncText text="Hi" ms={5000} />
         </Suspense>
       </Suspense>,
@@ -368,9 +368,7 @@ describe('ReactSuspense', () => {
 
       function App() {
         return (
-          <Suspense
-            maxDuration={1000}
-            fallback={<TextWithLifecycle text="Loading..." />}>
+          <Suspense fallback={<TextWithLifecycle text="Loading..." />}>
             <TextWithLifecycle text="A" />
             <AsyncTextWithLifecycle ms={100} text="B" ref={instance} />
             <TextWithLifecycle text="C" />
@@ -631,7 +629,7 @@ describe('ReactSuspense', () => {
 
       function App(props) {
         return (
-          <Suspense maxDuration={10} fallback={<Text text="Loading..." />}>
+          <Suspense fallback={<Text text="Loading..." />}>
             <Stateful />
           </Suspense>
         );
@@ -681,7 +679,7 @@ describe('ReactSuspense', () => {
 
       function App(props) {
         return (
-          <Suspense maxDuration={10} fallback={<ShouldMountOnce />}>
+          <Suspense fallback={<ShouldMountOnce />}>
             <AsyncText ms={1000} text="Child 1" />
             <AsyncText ms={2000} text="Child 2" />
             <AsyncText ms={3000} text="Child 3" />
@@ -726,7 +724,7 @@ describe('ReactSuspense', () => {
     it('does not get stuck with fallback in concurrent mode for a large delay', () => {
       function App(props) {
         return (
-          <Suspense maxDuration={10} fallback={<Text text="Loading..." />}>
+          <Suspense fallback={<Text text="Loading..." />}>
             <AsyncText ms={1000} text="Child 1" />
             <AsyncText ms={7000} text="Child 2" />
           </Suspense>
diff --git a/packages/react-reconciler/src/__tests__/ReactSuspenseFuzz-test.internal.js b/packages/react-reconciler/src/__tests__/ReactSuspenseFuzz-test.internal.js
index 22c2c051af38d..5c0323a657494 100644
--- a/packages/react-reconciler/src/__tests__/ReactSuspenseFuzz-test.internal.js
+++ b/packages/react-reconciler/src/__tests__/ReactSuspenseFuzz-test.internal.js
@@ -268,11 +268,6 @@ describe('ReactSuspenseFuzz', () => {
             remainingElements--;
             const children = createRandomChildren(3);
 
-            const maxDuration = pickRandomWeighted(rand, [
-              {value: undefined, weight: 1},
-              {value: rand.intBetween(0, 5000), weight: 1},
-            ]);
-
             const fallbackType = pickRandomWeighted(rand, [
               {value: 'none', weight: 1},
               {value: 'normal', weight: 1},
@@ -290,11 +285,7 @@ describe('ReactSuspenseFuzz', () => {
               );
             }
 
-            return React.createElement(
-              Suspense,
-              {maxDuration, fallback},
-              ...children,
-            );
+            return React.createElement(Suspense, {fallback}, ...children);
           }
           case 'return':
           default:
diff --git a/packages/react-reconciler/src/__tests__/ReactSuspensePlaceholder-test.internal.js b/packages/react-reconciler/src/__tests__/ReactSuspensePlaceholder-test.internal.js
index bb838c558a765..89f25adcd3cdd 100644
--- a/packages/react-reconciler/src/__tests__/ReactSuspensePlaceholder-test.internal.js
+++ b/packages/react-reconciler/src/__tests__/ReactSuspensePlaceholder-test.internal.js
@@ -110,7 +110,7 @@ describe('ReactSuspensePlaceholder', () => {
 
     function App(props) {
       return (
-        <Suspense maxDuration={500} fallback={<Text text="Loading..." />}>
+        <Suspense fallback={<Text text="Loading..." />}>
           <HiddenText text="A" />
           <span>
             <AsyncText ms={1000} text={props.middleText} />
@@ -176,7 +176,7 @@ describe('ReactSuspensePlaceholder', () => {
   it('times out text nodes', async () => {
     function App(props) {
       return (
-        <Suspense maxDuration={500} fallback={<Text text="Loading..." />}>
+        <Suspense fallback={<Text text="Loading..." />}>
           <Text text="A" />
           <AsyncText ms={1000} text={props.middleText} />
           <Text text="C" />
@@ -225,7 +225,7 @@ describe('ReactSuspensePlaceholder', () => {
         // uppercase is a special type that causes React Noop to render child
         // text nodes as uppercase.
         <uppercase>
-          <Suspense maxDuration={500} fallback={<Text text="Loading..." />}>
+          <Suspense fallback={<Text text="Loading..." />}>
             <Text text="a" />
             <AsyncText ms={1000} text={props.middleText} />
             <Text text="c" />
@@ -293,7 +293,7 @@ describe('ReactSuspensePlaceholder', () => {
         Scheduler.yieldValue('App');
         return (
           <Profiler id="root" onRender={onRender}>
-            <Suspense maxDuration={500} fallback={<Fallback />}>
+            <Suspense fallback={<Fallback />}>
               {shouldSuspend && <Suspending />}
               <Text fakeRenderDuration={textRenderDuration} text={text} />
             </Suspense>
diff --git a/packages/react-reconciler/src/__tests__/ReactSuspenseWithNoopRenderer-test.internal.js b/packages/react-reconciler/src/__tests__/ReactSuspenseWithNoopRenderer-test.internal.js
index f438dbb2dafd4..18d85fadb0b1d 100644
--- a/packages/react-reconciler/src/__tests__/ReactSuspenseWithNoopRenderer-test.internal.js
+++ b/packages/react-reconciler/src/__tests__/ReactSuspenseWithNoopRenderer-test.internal.js
@@ -89,6 +89,25 @@ describe('ReactSuspenseWithNoopRenderer', () => {
     }
   }
 
+  it('warns if the deprecated maxDuration option is used', () => {
+    function Foo() {
+      return (
+        <Suspense maxDuration={100} fallback="Loading...">
+          <div />;
+        </Suspense>
+      );
+    }
+
+    ReactNoop.render(<Foo />);
+
+    expect(() => Scheduler.flushAll()).toWarnDev([
+      'Warning: maxDuration has been removed from React. ' +
+        'Remove the maxDuration prop.' +
+        '\n    in Suspense (at **)' +
+        '\n    in Foo (at **)',
+    ]);
+  });
+
   it('suspends rendering and continues later', async () => {
     function Bar(props) {
       Scheduler.yieldValue('Bar');
@@ -137,10 +156,10 @@ describe('ReactSuspenseWithNoopRenderer', () => {
     // Render two sibling Suspense components
     ReactNoop.render(
       <Fragment>
-        <Suspense maxDuration={1000} fallback={<Text text="Loading A..." />}>
+        <Suspense fallback={<Text text="Loading A..." />}>
           <AsyncText text="A" ms={5000} />
         </Suspense>
-        <Suspense maxDuration={3000} fallback={<Text text="Loading B..." />}>
+        <Suspense fallback={<Text text="Loading B..." />}>
           <AsyncText text="B" ms={6000} />
         </Suspense>
       </Fragment>,
@@ -289,7 +308,7 @@ describe('ReactSuspenseWithNoopRenderer', () => {
     const errorBoundary = React.createRef();
     function App() {
       return (
-        <Suspense maxDuration={1000} fallback={<Text text="Loading..." />}>
+        <Suspense fallback={<Text text="Loading..." />}>
           <ErrorBoundary ref={errorBoundary}>
             <AsyncText text="Result" ms={3000} />
           </ErrorBoundary>
@@ -369,6 +388,9 @@ describe('ReactSuspenseWithNoopRenderer', () => {
   });
 
   it('keeps working on lower priority work after being pinged', async () => {
+    // Advance the virtual time so that we're close to the edge of a bucket.
+    ReactNoop.expire(149);
+
     function App(props) {
       return (
         <Suspense fallback={<Text text="Loading..." />}>
@@ -382,8 +404,9 @@ describe('ReactSuspenseWithNoopRenderer', () => {
     expect(Scheduler).toFlushAndYield(['Suspend! [A]', 'Loading...']);
     expect(ReactNoop.getChildren()).toEqual([]);
 
-    // Advance React's virtual time by enough to fall into a new async bucket.
-    ReactNoop.expire(1200);
+    // Advance React's virtual time by enough to fall into a new async bucket,
+    // but not enough to expire the suspense timeout.
+    ReactNoop.expire(120);
     ReactNoop.render(<App showB={true} />);
     expect(Scheduler).toFlushAndYield(['Suspend! [A]', 'B', 'Loading...']);
     expect(ReactNoop.getChildren()).toEqual([]);
@@ -463,17 +486,16 @@ describe('ReactSuspenseWithNoopRenderer', () => {
   });
 
   it('switches to an inner fallback even if it expires later', async () => {
+    // Advance the virtual time so that we're closer to the edge of a bucket.
+    ReactNoop.expire(200);
+
     ReactNoop.render(
       <Fragment>
         <Text text="Sync" />
-        <Suspense
-          maxDuration={1000}
-          fallback={<Text text="Loading outer..." />}>
-          <AsyncText text="Outer content" ms={2000} />
-          <Suspense
-            maxDuration={2500}
-            fallback={<Text text="Loading inner..." />}>
-            <AsyncText text="Inner content" ms={5000} />
+        <Suspense fallback={<Text text="Loading outer..." />}>
+          <AsyncText text="Outer content" ms={300} />
+          <Suspense fallback={<Text text="Loading inner..." />}>
+            <AsyncText text="Inner content" ms={1000} />
           </Suspense>
         </Suspense>
       </Fragment>,
@@ -492,8 +514,8 @@ describe('ReactSuspenseWithNoopRenderer', () => {
 
     // Expire the outer timeout, but don't expire the inner one.
     // We should see the outer loading placeholder.
-    ReactNoop.expire(1500);
-    await advanceTimers(1500);
+    ReactNoop.expire(250);
+    await advanceTimers(250);
     expect(Scheduler).toFlushWithoutYielding();
     expect(ReactNoop.getChildren()).toEqual([
       span('Sync'),
@@ -501,11 +523,11 @@ describe('ReactSuspenseWithNoopRenderer', () => {
     ]);
 
     // Resolve the outer promise.
-    ReactNoop.expire(2000);
-    await advanceTimers(2000);
-    // At this point, 3.5 seconds have elapsed total. The outer placeholder
-    // timed out at 1.5 seconds. So, 2 seconds have elapsed since the
-    // placeholder timed out. That means we still haven't reached the 2.5 second
+    ReactNoop.expire(50);
+    await advanceTimers(50);
+    // At this point, 250ms have elapsed total. The outer placeholder
+    // timed out at around 150-200ms. So, 50-100ms have elapsed since the
+    // placeholder timed out. That means we still haven't reached the 150ms
     // threshold of the inner placeholder.
     expect(Scheduler).toHaveYielded(['Promise resolved [Outer content]']);
     expect(Scheduler).toFlushAndYield([
@@ -522,7 +544,7 @@ describe('ReactSuspenseWithNoopRenderer', () => {
     // Expire the inner timeout.
     ReactNoop.expire(500);
     await advanceTimers(500);
-    // Now that 2.5 seconds have elapsed since the outer placeholder timed out,
+    // Now that 750ms have elapsed since the outer placeholder timed out,
     // we can timeout the inner placeholder.
     expect(ReactNoop.getChildren()).toEqual([
       span('Sync'),
@@ -595,10 +617,10 @@ describe('ReactSuspenseWithNoopRenderer', () => {
     expect(ReactNoop.getChildren()).toEqual([span('Loading (outer)...')]);
   });
 
-  it('expires early with a `maxDuration` option', async () => {
+  it('expires early by default', async () => {
     ReactNoop.render(
       <Fragment>
-        <Suspense maxDuration={1000} fallback={<Text text="Loading..." />}>
+        <Suspense fallback={<Text text="Loading..." />}>
           <AsyncText text="Async" ms={3000} />
         </Suspense>
         <Text text="Sync" />
@@ -632,7 +654,7 @@ describe('ReactSuspenseWithNoopRenderer', () => {
 
   it('resolves successfully even if fallback render is pending', async () => {
     ReactNoop.render(
-      <Suspense maxDuration={1000} fallback={<Text text="Loading..." />}>
+      <Suspense fallback={<Text text="Loading..." />}>
         <AsyncText text="Async" ms={3000} />
       </Suspense>,
     );
@@ -656,7 +678,7 @@ describe('ReactSuspenseWithNoopRenderer', () => {
 
   it('a Suspense component correctly handles more than one suspended child', async () => {
     ReactNoop.render(
-      <Suspense maxDuration={0} fallback={<Text text="Loading..." />}>
+      <Suspense fallback={<Text text="Loading..." />}>
         <AsyncText text="A" ms={100} />
         <AsyncText text="B" ms={100} />
       </Suspense>,
@@ -681,7 +703,7 @@ describe('ReactSuspenseWithNoopRenderer', () => {
 
   it('can resume rendering earlier than a timeout', async () => {
     ReactNoop.render(
-      <Suspense maxDuration={1000} fallback={<Text text="Loading..." />}>
+      <Suspense fallback={<Text text="Loading..." />}>
         <AsyncText text="Async" ms={100} />
       </Suspense>,
     );
@@ -704,10 +726,11 @@ describe('ReactSuspenseWithNoopRenderer', () => {
     expect(ReactNoop.getChildren()).toEqual([span('Async')]);
   });
 
-  it('starts working on an update even if its priority falls between two suspended levels', async () => {
+  // TODO: This cannot be tested until we have a way to long-suspend navigations.
+  it.skip('starts working on an update even if its priority falls between two suspended levels', async () => {
     function App(props) {
       return (
-        <Suspense fallback={<Text text="Loading..." />} maxDuration={10000}>
+        <Suspense fallback={<Text text="Loading..." />}>
           {props.text === 'C' ? (
             <Text text="C" />
           ) : (
@@ -802,55 +825,11 @@ describe('ReactSuspenseWithNoopRenderer', () => {
     expect(ReactNoop.getChildren()).toEqual([span('goodbye')]);
   });
 
-  describe('a Delay component', () => {
-    function Never() {
-      // Throws a promise that resolves after some arbitrarily large
-      // number of seconds. The idea is that this component will never
-      // resolve. It's always wrapped by a Suspense.
-      throw new Promise(resolve => setTimeout(() => resolve(), 10000));
-    }
-
-    function Delay({ms}) {
-      // Once ms has elapsed, render null. This allows the rest of the
-      // tree to resume rendering.
-      return (
-        <Suspense fallback={null} maxDuration={ms}>
-          <Never />
-        </Suspense>
-      );
-    }
-
-    function DebouncedText({text, ms}) {
-      return (
-        <Fragment>
-          <Delay ms={ms} />
-          <Text text={text} />
-        </Fragment>
-      );
-    }
-
-    it('works', async () => {
-      ReactNoop.render(<DebouncedText text="A" ms={1000} />);
-      expect(Scheduler).toFlushAndYield(['A']);
-      expect(ReactNoop.getChildren()).toEqual([]);
-
-      await advanceTimers(800);
-      ReactNoop.expire(800);
-      expect(Scheduler).toFlushWithoutYielding();
-      expect(ReactNoop.getChildren()).toEqual([]);
-
-      await advanceTimers(1000);
-      ReactNoop.expire(1000);
-      expect(Scheduler).toFlushWithoutYielding();
-      expect(ReactNoop.getChildren()).toEqual([span('A')]);
-    });
-  });
-
   describe('sync mode', () => {
     it('times out immediately', async () => {
       function App() {
         return (
-          <Suspense maxDuration={1000} fallback={<Text text="Loading..." />}>
+          <Suspense fallback={<Text text="Loading..." />}>
             <AsyncText ms={100} text="Result" />
           </Suspense>
         );
@@ -889,7 +868,7 @@ describe('ReactSuspenseWithNoopRenderer', () => {
       const text = React.createRef(null);
       function App() {
         return (
-          <Suspense maxDuration={1000} fallback={<Spinner />}>
+          <Suspense fallback={<Spinner />}>
             <ConcurrentMode>
               <UpdatingText ref={text} />
               <Text text="Sibling" />
@@ -969,9 +948,7 @@ describe('ReactSuspenseWithNoopRenderer', () => {
         function App() {
           return (
             <Fragment>
-              <Suspense
-                maxDuration={1000}
-                fallback={<Text text="Loading..." />}>
+              <Suspense fallback={<Text text="Loading..." />}>
                 <ConcurrentMode>
                   <UpdatingText ref={text1} initialText="Async: 1">
                     {text => (
@@ -1104,9 +1081,7 @@ describe('ReactSuspenseWithNoopRenderer', () => {
         function App() {
           return (
             <StrictMode>
-              <Suspense
-                maxDuration={1000}
-                fallback={<Text text="Loading..." />}>
+              <Suspense fallback={<Text text="Loading..." />}>
                 <ConcurrentMode>
                   <UpdatingText ref={text1} initialText="Async: 1">
                     {text => (
@@ -1250,9 +1225,7 @@ describe('ReactSuspenseWithNoopRenderer', () => {
 
       function App() {
         return (
-          <Suspense
-            maxDuration={1000}
-            fallback={<TextWithLifecycle text="Loading..." />}>
+          <Suspense fallback={<TextWithLifecycle text="Loading..." />}>
             <TextWithLifecycle text="A" />
             <AsyncTextWithLifecycle ms={100} text="B" />
             <TextWithLifecycle text="C" />
@@ -1517,9 +1490,7 @@ describe('ReactSuspenseWithNoopRenderer', () => {
 
     function App() {
       return (
-        <Suspense
-          maxDuration={1000}
-          fallback={<TextWithLifecycle text="Loading..." />}>
+        <Suspense fallback={<TextWithLifecycle text="Loading..." />}>
           <TextWithLifecycle text="A" />
           <AsyncTextWithLifecycle ms={100} text="B" />
           <TextWithLifecycle text="C" />
diff --git a/packages/react/src/__tests__/ReactProfiler-test.internal.js b/packages/react/src/__tests__/ReactProfiler-test.internal.js
index ed4cca9b566e1..8df35e979e8fd 100644
--- a/packages/react/src/__tests__/ReactProfiler-test.internal.js
+++ b/packages/react/src/__tests__/ReactProfiler-test.internal.js
@@ -2362,10 +2362,8 @@ describe('Profiler', () => {
           () => {
             ReactTestRenderer.create(
               <React.Profiler id="app" onRender={onRender}>
-                <React.Suspense
-                  maxDuration={1000}
-                  fallback={<Text text="loading" />}>
-                  <AsyncText text="loaded" ms={2000} />
+                <React.Suspense fallback={<Text text="loading" />}>
+                  <AsyncText text="loaded" ms={500} />
                 </React.Suspense>
               </React.Profiler>,
             );
@@ -2416,10 +2414,8 @@ describe('Profiler', () => {
           () => {
             ReactTestRenderer.create(
               <React.Profiler id="app" onRender={onRender}>
-                <React.Suspense
-                  maxDuration={1000}
-                  fallback={<Text text="loading" />}>
-                  <AsyncComponentWithCascadingWork text="loaded" ms={2000} />
+                <React.Suspense fallback={<Text text="loading" />}>
+                  <AsyncComponentWithCascadingWork text="loaded" ms={500} />
                 </React.Suspense>
               </React.Profiler>,
             );
@@ -2455,10 +2451,8 @@ describe('Profiler', () => {
           () => {
             ReactTestRenderer.create(
               <React.Profiler id="app" onRender={onRender}>
-                <React.Suspense
-                  maxDuration={1000}
-                  fallback={<Text text="loading" />}>
-                  <AsyncText text="loaded" ms={2000} />
+                <React.Suspense fallback={<Text text="loading" />}>
+                  <AsyncText text="loaded" ms={500} />
                 </React.Suspense>
               </React.Profiler>,
               {
@@ -2468,8 +2462,8 @@ describe('Profiler', () => {
           },
         );
 
-        Scheduler.advanceTime(1500);
-        await awaitableAdvanceTimers(1500);
+        Scheduler.advanceTime(400);
+        await awaitableAdvanceTimers(400);
 
         expect(Scheduler).toFlushAndYield([
           'Suspend [loaded]',
@@ -2477,8 +2471,8 @@ describe('Profiler', () => {
         ]);
         expect(onInteractionScheduledWorkCompleted).not.toHaveBeenCalled();
 
-        Scheduler.advanceTime(2500);
-        await awaitableAdvanceTimers(2500);
+        Scheduler.advanceTime(500);
+        await awaitableAdvanceTimers(500);
 
         expect(Scheduler).toHaveYielded(['Promise resolved [loaded]']);
         expect(Scheduler).toFlushAndYield(['AsyncText [loaded]']);
@@ -2502,10 +2496,8 @@ describe('Profiler', () => {
           () => {
             ReactTestRenderer.create(
               <React.Profiler id="app" onRender={onRender}>
-                <React.Suspense
-                  maxDuration={2000}
-                  fallback={<Text text="loading" />}>
-                  <AsyncText text="loaded" ms={1000} />
+                <React.Suspense fallback={<Text text="loading" />}>
+                  <AsyncText text="loaded" ms={100} />
                 </React.Suspense>
               </React.Profiler>,
               {unstable_isConcurrent: true},
@@ -2519,7 +2511,7 @@ describe('Profiler', () => {
 
         expect(onInteractionScheduledWorkCompleted).not.toHaveBeenCalled();
 
-        jest.advanceTimersByTime(1000);
+        jest.advanceTimersByTime(100);
         await resourcePromise;
         expect(Scheduler).toHaveYielded(['Promise resolved [loaded]']);
         expect(Scheduler).toFlushAndYield(['AsyncText [loaded]']);
@@ -2545,10 +2537,8 @@ describe('Profiler', () => {
           () => {
             renderer = ReactTestRenderer.create(
               <React.Profiler id="app" onRender={onRender}>
-                <React.Suspense
-                  maxDuration={2000}
-                  fallback={<Text text="loading" />}>
-                  <AsyncText text="loaded" ms={1000} />
+                <React.Suspense fallback={<Text text="loading" />}>
+                  <AsyncText text="loaded" ms={100} />
                 </React.Suspense>
                 <Text text="initial" />
               </React.Profiler>,
@@ -2579,10 +2569,8 @@ describe('Profiler', () => {
             () => {
               renderer.update(
                 <React.Profiler id="app" onRender={onRender}>
-                  <React.Suspense
-                    maxDuration={2000}
-                    fallback={<Text text="loading" />}>
-                    <AsyncText text="loaded" ms={1000} />
+                  <React.Suspense fallback={<Text text="loading" />}>
+                    <AsyncText text="loaded" ms={100} />
                   </React.Suspense>
                   <Text text="updated" />
                 </React.Profiler>,
@@ -2600,8 +2588,8 @@ describe('Profiler', () => {
 
         expect(onInteractionScheduledWorkCompleted).not.toHaveBeenCalled();
 
-        Scheduler.advanceTime(1000);
-        jest.advanceTimersByTime(1000);
+        Scheduler.advanceTime(100);
+        jest.advanceTimersByTime(100);
         await originalPromise;
         expect(renderer.toJSON()).toEqual(['loaded', 'updated']);
 
@@ -2631,10 +2619,8 @@ describe('Profiler', () => {
           () => {
             renderer = ReactTestRenderer.create(
               <React.Profiler id="app" onRender={onRender}>
-                <React.Suspense
-                  maxDuration={2000}
-                  fallback={<Text text="loading" />}>
-                  <AsyncText text="loaded" ms={1000} />
+                <React.Suspense fallback={<Text text="loading" />}>
+                  <AsyncText text="loaded" ms={100} />
                 </React.Suspense>
                 <Text text="initial" />
               </React.Profiler>,
@@ -2651,8 +2637,8 @@ describe('Profiler', () => {
         expect(onInteractionScheduledWorkCompleted).not.toHaveBeenCalled();
         expect(onRender).not.toHaveBeenCalled();
 
-        Scheduler.advanceTime(500);
-        jest.advanceTimersByTime(500);
+        Scheduler.advanceTime(50);
+        jest.advanceTimersByTime(50);
 
         const highPriUpdateInteraction = {
           id: 1,
@@ -2669,10 +2655,8 @@ describe('Profiler', () => {
             () => {
               renderer.update(
                 <React.Profiler id="app" onRender={onRender}>
-                  <React.Suspense
-                    maxDuration={2000}
-                    fallback={<Text text="loading" />}>
-                    <AsyncText text="loaded" ms={1000} />
+                  <React.Suspense fallback={<Text text="loading" />}>
+                    <AsyncText text="loaded" ms={100} />
                   </React.Suspense>
                   <Text text="updated" />
                 </React.Profiler>,
@@ -2695,8 +2679,8 @@ describe('Profiler', () => {
 
         expect(onInteractionScheduledWorkCompleted).toHaveBeenCalledTimes(0);
 
-        Scheduler.advanceTime(500);
-        jest.advanceTimersByTime(500);
+        Scheduler.advanceTime(50);
+        jest.advanceTimersByTime(50);
         await originalPromise;
         expect(Scheduler).toHaveYielded(['Promise resolved [loaded]']);
         expect(Scheduler).toFlushAndYield(['AsyncText [loaded]']);
diff --git a/packages/react/src/__tests__/ReactProfilerDOM-test.internal.js b/packages/react/src/__tests__/ReactProfilerDOM-test.internal.js
index 21b691c4ff9f6..8d2bf3cf8b337 100644
--- a/packages/react/src/__tests__/ReactProfilerDOM-test.internal.js
+++ b/packages/react/src/__tests__/ReactProfilerDOM-test.internal.js
@@ -88,7 +88,7 @@ describe('ProfilerDOM', () => {
       const root = ReactDOM.unstable_createRoot(element);
       batch = root.createBatch();
       batch.render(
-        <React.Suspense maxDuration={100} fallback={<Text text="Loading..." />}>
+        <React.Suspense fallback={<Text text="Loading..." />}>
           <AsyncText text="Text" ms={2000} />
         </React.Suspense>,
       );