Unity 3d 4.2.1 update slow down the Frame rate

Target Platforms Mobile
1

I am facing a very strange problem. i have updated my unity 3d 4.1 to unity 3d 4.2.1. now my Game is not running on IOS. the Frame are drop to 5 to 9 . kindly help me.

advance thanks

2

I have solved the problems.

I change the rendering path to forward in the camera.

http://answers.unity3d.com/questions/506377/dramatically-decreased-performance-after-updating.html?sort=oldest

thanks alot to MR. Xtro.