diff --git a/packages/engine/Source/Scene/ScreenSpaceCameraController.js b/packages/engine/Source/Scene/ScreenSpaceCameraController.js
index 7d67f7ac60b..62e1b15dd37 100644
--- a/packages/engine/Source/Scene/ScreenSpaceCameraController.js
+++ b/packages/engine/Source/Scene/ScreenSpaceCameraController.js
@@ -579,6 +579,7 @@ function handleZoom(
 
   let fpsMultiplier = 1;
   const fps = object.frameRateMonitor.averageFramesPerSecond;
+  // we set the ideal browser refresh rate to 30hz
   if (fps) {
     fpsMultiplier = 30 / fps;
   }