diff --git a/src/timelines/PullDownToRefresh.tsx b/src/timelines/PullDownToRefresh.tsx
index 81590ea..3aa7195 100644
--- a/src/timelines/PullDownToRefresh.tsx
+++ b/src/timelines/PullDownToRefresh.tsx
@@ -80,7 +80,7 @@ const PullDownToRefresh: Component<{
   const handleLinkedWheel = (event: WheelEvent) => {
     const scrollTop = (event.target as HTMLElement).scrollTop;
     if (scrollTop >= 0 && scrollTop < 1) {
-      ds = -(event.deltaY / window.devicePixelRatio);
+      ds = -(event.deltaY / window.devicePixelRatio / 4);
       if (released) {
         released = false;
         requestAnimationFrame(updatePullDown);