# Game Performance
**URL:** https://discussions.unity.com/t/game-performance/69085
**Category:** Questions & Answers
**Created:** [April 20, 2013, 8:21pm UTC](https://discussions.unity.com/t/game-performance/69085 "2013-04-20T20:21:05Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@HKFiftyOne](https://discussions.unity.com/u/HKFiftyOne)
#### Post date: [April 20, 2013, 8:21pm UTC](https://discussions.unity.com/t/game-performance/69085/1 "2013-04-20T20:21:05Z")
For some reason, Unity all of a sudden just started becoming extremely laggy when in play mode, and I have no idea why, everything works very fast when Im editing things in the scene view, but when I go into play mode, I get around 4 fps. The same thing happens when I build the game and play it (.exe), except when I play the game, it’s still laggy, but I get higher fps, around 10-12. However, I have no idea why it would be this slow. To test it, I removed almost all the box colliders, mesh colliders, and animations in the entire game, but still I get 4 fps in play mode within Unity, and 10-12 fps when I play the build. What I don’t understand, is that the game ran at about 40 fps before I started having this problem, (which happened litteraly in a matter of minutes. One minute it ran fine, and within a course of around 5 minutes, it became extremely laggy and hasnt gotten any better since) and I had even more resources being used, with all the box colliders and animations and sounds. I’ve gotten rid of litteraly half of the resource intensive assets in my game, and yet it still runs extremely slow.
Any ideas? I’d really like to get this problem resolved. It would be horrible to have spent so much time on a game just to have it be entirely unplayable.
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### Author:  [@HKFiftyOne](https://discussions.unity.com/u/HKFiftyOne)
#### Post date: [April 21, 2013, 3:30pm UTC](https://discussions.unity.com/t/game-performance/69085/2 "2013-04-21T15:30:46Z")
I went through the objects in my scene, and while I was playing, I noticed I had some other things in the console, "[mecanim]: BindSkeleton: connot find Transform “right\_door” I realized I had deleted parts of a door, which had a bunch of parts to it. I deleted it from the scene view, and sure enough, I’m getting around 30 fps now. And I’m sure getting rid of the print in the console would help too. Thanks for your help!