Changes

If you're using Windows Vista/7 and are playing in windowed mode, having [https://en.wikipedia.org/wiki/Windows_Aero Aero] enabled will add a noticeable amount of input lag because it forces vertical synchronization at the OS-level. The same thing applies to other OSs OSes if compositing is enabled with VSync. Exclusive Aero can be disabled in both Vista and 7, thus disabling compositing and lowering input lag when playing in windowed mode, but this can no longer be done from Windows 8 onward. That said, exclusive fullscreen should automatically disable compositingon all Windows OSes, making it the preferred way to emulate in most cases.