I actually haven't had much problems with poor performance so far with my i7-4790K 4GHz, 16GB RAM and GTX 980. There's some jittering in the walking animations occasionally in bigger maps (it's a little hilarious, no offence intended to anyone
), but nothing too bad. Then again, I guess I'll find out what happens with the Xbox huge maps that I haven't seen yet, like the mansion.
Also, do I need to edit my save in any way to take the mansion missions into account? Comparing to a new campaign save, I see "- region: REGION_LOC_EMANSION" is missing, but all other region specific mansion entries are there.