I am a Nvidia Shield user, and when I use these bezel shaders, the first time I need about 20 seconds to apply it to mame or console rom, but over the same rom, once loaded, second bezel or more dont need so time to apply, about 5 or 8 seconds no more. Is a problem nvidia shield hardware? Playing with this shaders the speed is correct, but only at the beggining. When I load a new rom, I have the same situation: I have to wait about new 20 seconds to start the game.
Sorry for my bad english mates.