Environment setup for Mobile App Game

Hi All,

We are developing a run game similar to Temple Run Oz , and we have setup the environment by placing low poly trees and despite of low poly the app’s FPS was very low and it was getting struck and still we cannot achieve what the below Game Apps have achieved .

Let me know if these teams have used something different like only the painting or its completely 3d , please help me in achieving this.

Thanks in advance

do you use a very big map? or if it’s random spawn do you destroy the objects that you dont see any more
give some more details