Going mobile is not easy, so you must consider it from the beginning. So I decided to develop a new project for the mobile devices and having a simple structure working I started looking at de frame rate and, surprise surprise, it look bad. I mean it was 6 to 8 frames per second and the scene was almost empty. Then I look at the bag of optimizations and started the kung fu: - first simplify the models, less vertices, less faces, less edges all led to faster rendering; - change the Unity shaders to mobile; - I'm using a terrain so looking at the options I started messing with this: - pixel error; - base map distance; - detail distance; - Theres one directional light in the scene so here's what I changed: - baking to baked; - shadows to hard shadows; In the scripts I looked at: - string concatenation - make it with stringbuilder; - function calls, some times can be avoided; - some functions can be optimizaded like the Mathf.Abs ...