diff --git a/frontend/src/scripts/test/monkey.ts b/frontend/src/scripts/test/monkey.ts
index e35742a30..cb3e7acdd 100644
--- a/frontend/src/scripts/test/monkey.ts
+++ b/frontend/src/scripts/test/monkey.ts
@@ -63,10 +63,10 @@ function update(): void {
 
 export function updateFastOpacity(num: number): void {
   if (!Config.monkey) return;
-  const opacity = mapRange(num, 100, 200, 0, 1);
+  const opacity = mapRange(num, 130, 180, 0, 1);
   $("#monkey .fast").animate({ opacity: opacity }, 1000);
-  let animDuration = mapRange(num, 100, 200, 0.5, 0.01);
-  if (animDuration == 0.5) animDuration = 0;
+  let animDuration = mapRange(num, 130, 180, 0.25, 0.01);
+  if (animDuration == 0.25) animDuration = 0;
   $("#monkey").css({ animationDuration: animDuration + "s" });
 }