This seems odd but i thought id let everyone know.
Ive been testing Windows 8 Recently and the results of running Black Mesa On Windows 8 are far more impressive than what ive found on Windows 7.
I get various lag spikes mainly when i put the flashlight on and various other perfomance issues.
But… When i play this in windows 8 on the same setting… its perfectly fine
Maybe windows 8 isnt as bad as people think