diff --git a/ui/accelerated_widget_mac/ca_renderer_layer_tree.mm b/ui/accelerated_widget_mac/ca_renderer_layer_tree.mm
index 5020097ff8161b..3584fd56e03d8a 100644
--- a/ui/accelerated_widget_mac/ca_renderer_layer_tree.mm
+++ b/ui/accelerated_widget_mac/ca_renderer_layer_tree.mm
@@ -38,7 +38,7 @@
 constexpr int kOutputLevel = 4;
 
 base::Feature kCALayerTreeOptimization{"CALayerTreeOptimization",
-                                       base::FEATURE_DISABLED_BY_DEFAULT};
+                                       base::FEATURE_ENABLED_BY_DEFAULT};
 
 void RecordIOSurfaceHistograms(
     int changed_io_surfaces_during_commit,