Behavior to slow on Android Mobile.

I’m creating game by Unity4.1.5 and have a problem. It is behavior to slow on Android Mobile(OS4.0.3).
Maybe I think to be attributed to create many GameObjects, about 1000 pieces.
I cannot delete them as much as possible. Could you please give me advice?
GameObjects are created from Maya. In Unity, it does not slow.

In the Game tab click on Stats at the top, play the game and see how many draw calls are made. You should aim to have as few draw calls as possible by using the same materials for different gameobjects. Also consider reducing the polygon count of your gameobjects in maya.
I had the same problem and I sacrificed some quality by reducing polygon count as well as sacrificing some materials and now it works fine.