Basically as the title says, I seem to have the issue of FPS drops on most maps. Whenever I look out into open areas of a map, my FPS drops from 120 to anywhere down to 30. Now, if I had an older computer, this drop would make sense. However, this is a pretty fast gaming computer that runs TF2 fine in high 100 fps, but lags in a GoldSource game? This has also been a problem for me on my old 2006 computer, but even then it was more than enough to run the game perfectly. Anyone have any ideas on why this is happening?