ok so here's the deal
i changed my graphics settings around a little. and ended up playing @ 1920*1080 and awesome detail and no AA (since i really want to play @ awesome detail). The game has bee performing decently, with just a little bit of lag every now and then, however, when i get to europolis it halts to a choppy mess of about 3-4 FPS.
this is the machine i am currently at:
AMD Phenom X4 975 BE (3.6 GHz, 8MBcache)
12 GB RAM (1600 MHz)
Geforce gtx 560 (1GB RAM)
now for the moment the solution is, obviously, to lower detail settings (which i don't want to do).
my question could be boiled down to: "should i expect this to be solved pretty soon with an update (i.e. is it due to game optimization ) or is my computer (graphics card) simply too weak for the "awesome" settings, especially if i want to run some AA?"