Its been a while since ive played this and so I redownloaded it from GOG.com but when moving the camera while playing a simple tap of the arrow key or aswd key flings me over about a whole screen worth really fast.
Is it because of the gog patch? It wont let me uncheck it to find out. I also dont remember the fog in the main menu floating around super fast either. My mouse also bugs out a bit while playing randomly.

I have made sure that direct x was enabled