Ok, so recently the Steampipe update happened for Team Fortress 2. Obviously, since I couldn't play without updating, I had to do it. I waited a few hours, and it was done. But I have a problem now. My game runs horribly slow, so much that it crashes upon attempting to load a map, which goes completely against Valve's claims. This update only seemed to slow down my performance to the point where it is virtually unplayable. Any help?

That happened to me, you just have to play it enough to get your computer used to the new update