Some Issues, not sure if it just me. RE3

[Dozer58]

Playing in first person mode.

1. When walking forwards I don't go in a straight line, I move to the left and right slightly as though i'm drunk.
2. Is there a snap turn option? I can't handle smooth turn.
3. There's a large rectangle covering the whole field of view but has high transparency so it just dims the view slightly, should that be there?
4. If these issues are there for everyone in RE3 are they also in the all the other games that this mod covers?

Thanks.