[quote=21873]The PiTFT display does not allow OpenGL hardware acceleration, which is what RetroPie uses (and most emulators). If you really wanted to try, you could use fbcp which copies the framebuffer back to the PiTFT but it has a lower framerate and the resolution gets somewhat messed up.[/quote]
What do you mean by the resolution getting messed up? And how do you force fb1?