Low Fps on iPhone and android devices

Hello Folks,

I am currently working on a 3d footbal free style game .There is one 3D Character in scene , a ball and just two 3d planes with some texures in the scene and a directional light. There is a lot of Gui content for menu options.

The game is working fine on iPad with about 30 fps.

But on iphone i m getting only 8-9 fps. I have use profiler to point out the prob lem .It shows Device.present using about 65-70 % of cpu.I searched for solutions online but couldn't find the reason of this. Also I have went through some of the 'optimisation on iOs devices' pages but couldn't increase the fps with any solution.

Please help