diff --git a/src/vs/base/browser/mouseEvent.ts b/src/vs/base/browser/mouseEvent.ts
index b29c2ef7ac45005acca37faef4f87ccb0af85a58..18ca159d38f83867d5577ac45b55425b1b656c2d 100644
--- a/src/vs/base/browser/mouseEvent.ts
+++ b/src/vs/base/browser/mouseEvent.ts
@@ -131,8 +131,8 @@ export class StandardWheelEvent {
 				this.deltaX = -e.deltaX / 3;
 				this.deltaY = -e.deltaY / 3;
 			} else if (e.deltaMode === e.DOM_DELTA_PIXEL) {
-				this.deltaX = -e.deltaX / 120;
-				this.deltaY = -e.deltaY / 120;
+				this.deltaX = -e.deltaX / 40;
+				this.deltaY = -e.deltaY / 40;
 			}
 		}
 	}