We have created a 3D world game using Unity and is working successfully on iPad 3 but laggs terribly on Galaxy Tabs. The response to touch input is very buggy, We spent a lot of days trying to fix a lot of thigns, the tris and verts are well under the limits. I want to make sure my game doesn't lag on lower end devices and works fine on Android devices. Could anyone please tell me which API level I should use by default in Android SDK and in the buildsettings? . is there any specific build settings for Android in Unity?