diff --git a/game.js b/game.js
index fefff9f..f840855 100644
--- a/game.js
+++ b/game.js
@@ -207,7 +207,7 @@ class Game extends GameBasic {
             that.entities.push(new Shooter(false, that))
         }
 
-        setInterval(function () { that.sync(false) }, 1000 / 10);
+        setInterval(function () { that.sync(false) }, 1000 / 30);
         setInterval(function () { that.sync(true) }, 1000);
         setInterval(function () { that.clean() }, 1000);
     }