diff --git a/test/runner.html b/test/runner.html
index 633fed9080..2752e1afb1 100644
--- a/test/runner.html
+++ b/test/runner.html
@@ -106,8 +106,9 @@
     }
     // Both sd and ce are supported, force both polyfills
     if (flags.length === 2) {
+      // Note: Disabled to speed up testing, may be reenabled at a later date when the test timing is less of an issue.
       // ce + sd becomes a single test iteration.
-      flags.push('wc-ce=true&wc-shadydom=true');
+      // flags.push('wc-ce=true&wc-shadydom=true');
     }
 
     // economize testing by testing css shimming