diff --git a/test/e2e/specs/editor/various/autocomplete-and-mentions.spec.js b/test/e2e/specs/editor/various/autocomplete-and-mentions.spec.js
index ec0ca999993c2..9d6fa02802efe 100644
--- a/test/e2e/specs/editor/various/autocomplete-and-mentions.spec.js
+++ b/test/e2e/specs/editor/various/autocomplete-and-mentions.spec.js
@@ -427,6 +427,9 @@ test.describe( 'Autocomplete (@firefox, @webkit)', () => {
 		page,
 		editor,
 	} ) => {
+		// The autocomplete popup is flaky when typing too fast, so we need to
+		// slow it down until it's addressed in the component.
+		// See https://github.com/WordPress/gutenberg/pull/55081
 		const typingDelay = 100;
 
 		await editor.canvas