I found somethings strange happening with Deus Ex: GotYE from Steam.
When I play the game and my view is looking at a more open field or during action, the game lags like crazy. I used Bandicam to detect the FPS and it goes down to twenty.
I have the thing set in OpenGL rendering. (DirectX is almost unplayable.)
Also, keep in mind this is a game from 2000. I have a PC that has dual core 1.4 Ghz AMD, which is more than four times the requirements. At least with TF2, I'm lucky to even get 30FPS!
Is this just a optimization problem Ion Storm never fixed or something?