In the InfoWindow, you can make your personal
defaults for certain aspects of Blender. They will be saved with
the Blender default scene when you press CTRL-U.
Blender game engine options in the InfoWindow
Disable the use of vertexarrays. Vertexarrays normally speed up the calculation on complex scenes. If your OpenGL system does not support vertexarrays you can switch them off using this option.
Disable audio output.
Don`t use texture Mipmap, this can speedup the game but will result in not so nice rendered textures.
Here you can enter an additional path where the Python interpreter of Blender should search for modules.