Low FPS on Hidden And Dangerous Deluxe

The problem is that if i check xp compatibility mode it runs as admin without me clicking or checking anything, and i run H&D Deluxe as admin it gives me a directx error.
So i cannot use XP compatibility mode without running as admin for some reason, running as admin gives me an error in the game, if i dont run it in compatibility mode for xp my mouse sensitivity is still screwed