Does the game use DirectX? If so, Wine has to translate it to OpenGL, and that's the extra overhead you're getting. If the game has an OpenGL mode, you can try switching to it and it should run close to Windows' speed (mileage may vary).
Does the game use DirectX? If so, Wine has to translate it to OpenGL, and that's the extra overhead you're getting. If the game has an OpenGL mode, you can try switching to it and it should run close to Windows' speed (mileage may vary).