TweakGuides.com has a collection of all this stuff. Though they tested with the beta 1.03 patch, apparently the performance with 1.03 is even better than their tests, judging from the bioware forum buzz that ensued. With that patch is supposed to come a significant increase in performance that should relieve your headache quite a bit. It gave me some headaches as it borked my whole game, but that's another matter entirely (never let a NWNUpdate patch crash, EVER).