diff --git a/src/box.js b/src/box.js
index be05ae9..686739a 100644
--- a/src/box.js
+++ b/src/box.js
@@ -65,7 +65,7 @@ class Box {
 
         if (this.jumpCounter > 0) {
             this.jumpCounter--;
-            this.speedX = MAX_SPEED * x;
+            this.speedX = MAX_SPEED * x * 0.8;
             this.speedY = MAX_SPEED;
         }