PlayStation 1 games have smooth loading bars. Which is something that you can "exploit" in emulators. Regardless of how fast computer you have, as long as you get the same frame rate on a PS1 emulator as a real PS1 outputs, the loading will take the same amount of time. But if you fast-forward the emulator, the loading will be quicker. – This could be either because the emulator is simulating a real console loading, therefore it's the same (doesn't really explain the smooth loading bar); a second theory I have is that what it loads is allocated across all the frames, and the little work it needs to do is enough to complete for that frame. So you end up ensuring you have a smooth loading bar.