Optimized the game to increase FPS

A new patch has been uploaded for Push-up High (alpha v.0.0.3).

Patchnotes:

• Culling is imported which means that the overall framerate should be increased.
• Physics and velocity iteration count have been decreased to ease CPU processing.

After some feedback we realized some players had issues with FPS during gameplay. This patch introduce culling to decrease the number of rendered objects at runtime. The culling needs to be tweaked according to your experience. So if you experience any popping or disappearing textures, please let us know. Also, physics and velocity is not calculated as frequently for the player model, thus enhancing CPU performance at runtime.