Finished the Agent chapter 3 a long long time ago, obviously finished the Forged Alliances stuff too. Got the 5 second short introduction with no dialogue.
This coupled with the stupidly bugged endboss fight kind of turns this expansion from great to extremely disappointing. Leaves a bad taste, really.
Well, updating my graphics drivers helped a bit. The framerate is still lower than it was before the patch, but most of the choppiness is gone and i'm not dropping below 30fps anymore, so it's playable.
Using an HD6870.
Yeah, I'm having the same problem.
My framerate was stable around 80fps yesterday, today after the patch it dips as low as 20 quite often. Which is frankly completely unacceptable.