diff --git a/.changeset/orange-walls-buy.md b/.changeset/orange-walls-buy.md
new file mode 100644
index 00000000000..29c42bf332c
--- /dev/null
+++ b/.changeset/orange-walls-buy.md
@@ -0,0 +1,5 @@
+---
+"@primer/react": patch
+---
+
+feat(ActionList): Optimizes CSS selector performance in ActionList by replacing expensive universal selectors (`*`) and broad `:has()` queries with targeted class selectors.
diff --git a/packages/react/src/ActionList/ActionList.module.css b/packages/react/src/ActionList/ActionList.module.css
index f8007fb3e63..1e24e4d07cf 100644
--- a/packages/react/src/ActionList/ActionList.module.css
+++ b/packages/react/src/ActionList/ActionList.module.css
@@ -277,8 +277,13 @@
     }
 
     &:where([data-loading='true']),
-    &:has([data-loading='true']) {
-      & * {
+    & > [data-loading='true'] {
+      & .ItemLabel,
+      & .Description,
+      & .LeadingVisual,
+      & .TrailingVisual,
+      & .LeadingAction,
+      & .VisualWrap {
         color: var(--fgColor-muted);
       }
     }