@Rei_Leo The whole thing about Jill running faster is most likely just the fact that the PC version has far better fps than the PS1 version.

The game is the same, it has the same dificultty as any other port, if you choose original for sure, and all the enemies have the same hp, the only real difference between console ports and pc ports, is that you can skip doors. Jill speed is also the same. Maybe you're running a modified version.

If you compare PC to Console then I can see why you think Jill moves faster. This is probably due to the camera transitions being instant.