So... ive got this:

i7 quadcore with 3.3-3.7 ghz with 16gb ram (1600mhz)
gtx680m with 3gb videomemory
and ive tried every driver made in the last year (atm using the 326.41 one) and also did alot of full clean register installs/wipes etc.

Playing at 1920*1080 at lowest graphic settings possible.

fps in dungeons: 100-160 (hmm.. well.. could be better but is fine)
fps in open world: 50-60 ( .. ok.. ok.. not great, but manageble .. will need improvement)
fps in city: 25-30 fps (wtf is happening here.. my eyes!)

any advice/tips/question or something else that can help?