In the steam forums, i got a warning for laughing, D: that's something unheard of
The FPS problem:
Well For the first time in tf2 i actually checked what fps i get and i found out i get 25 fps max D: . SO i post in the steam forums and they have yet to tell me anything useful. So i thought i would type it here and check if any of the wonderful source engine wizards here can help.
http://forums.steampowered.com/forums/showthread.php?t=706057
I didn't look at what you had in your autoconfig, or whatever you posted, but I own a 7300 GT and I know for a fact that the auto settings are bollocks.
You can do high everything (which means just high on texture quality, not very high), except you need to turn off AA, set it to Trilinear (for whatever that setting is), and turn off all forms of HDR and bloom.
I have motion blur on, myself, because it looks to god damn cool. But it's not really a performance killer.
I may be missing something.
My FPS's range from 15 - 50, depending on how many people are in the server. I don't notice any slow downs.
I'm also running in a resolution of 1024 x 768. Anything higher with your card is just stupid, so you may need to adjust that. (In fact, that's probably your problem in the first place, unless you were smart about it.)
Or check if your game files are fragmented. Not sure if that'd change game performance, though.