Hello, I am trying to port our upcoming Android game to Windows Phone specifically Lumia 520 but im getting incredibly slow performance. Somehow the performance is better -but still a lot slower than expected- if i launch the application from Visual Studio as "Master" but by pressing F5 rather than launching from the Phone itself by tapping. What i'm trying to is find the cause of that.Since i can not profile GPU it is very hard to find out if the issue is graphics related.I have tried to shrink textures to the half of their original size.Tried to disable UI completely(EZGUI) but had almost no performance gains. Also when i profile the game from Unity on Lumia 520 i observe a lot of Overhade (%60+) all the time.This seems like the reason of the slow performance. Btw i only use DXT1,DXT5,RGBA16 and RGBA32 textures.Mostly DXT1 and DXT5. Any help or guidance is appreciated. To see how it is performing on Android you can apply for beta from the following link : http://bit.ly/StCappformWT Update 1 I have tried to disable Audio and GUI(EZGUI) completely to if the problem was related to those with no luck. Update 2 Also i should add that game performs quite ok even on low end Android devices.I believe there is some platform/device related difference/issue that i'm missing and causing this problem.