I don't know why, but when playing, and then even recording, my fps just gets super low. I have a pretty good rig, and with this game, especially at its age, this shouldn't be happening. Any ideas?

It is also the latest version, I believe, from steam.

Try lowering your graphic details and resolution (which will also help lowering your loading times). Even though it's an old game, it was never optimized well. Other games run okay?

Yea. I can run pretty much any game that came out after 2015 at pretty much maxed out settings. But I probably agree with you on how the game is pretty old.