Gane Lagging on my Phone even with graphics at lowest

Hi guys…I made FPS on unity and build it for android…But everything is laggy as hell even on S4…Litteraly evrrything is on its lowest…Maybe any Suggestions on what it could be that Im missing…Trees and Terrain textures at lowest ti…Thanks guys

So this isn’t likely what you want to see as your Answer but there’s no magical fast=true flag. If you don’t know what a DrawCall is, it’s likely that you really haven’t done much homework in terms of optimizing so a general overview is called for: