L4D2 performance drop since Sacrifice Update

[jotie8128]

So I've been playing l4d2 on medium settings before the update with 25-30 fps (this is perfectely playable for me), but ever since the update it drops to 18 fps and I have to change my settings to low to just make it barely playable (20 fps)...

A few days ago, the problem seemed to be fixed, but yesterday it started all over again.

I haven't changed anything about my computer and already tried to reinstall l4d2.

I really hope there's an answer to this problem, since I don't like playing on low (no bloom effect :( )!

[Buick72]

Same for me, I ran everything at high and got great framerates before. After the update I get framerate drops and I crash at least once per game, no matter what I put my settings to. Game ran perfectly before the Sacrifice came out, now, not so much. Hopefully this wont be an issue much longer, it's hard to finish a game of VS when I crash during a tank fight.

[Skulltrail]

Same here; massive fps drop since it Sacrifice came out, and this level is absolutely unplayable on my config; getting 2-3fps, versus 110fps in other chapters..

[RugbyOddjob]

One thing all these have in common is no clue as to what systems are being used.

In the current format, these posts are blog posts, so please feel free to tell us what rigs you are running (inc O/S and RAM too pleeeze :) ) and you may find someone comes up with a solution.

I take it all of you have tried the obvious things?