Loving this game so far, its so much fun. Ploughed over 20 hours into it so far.
At the mo the game is running sweet and no freezes or crashes. Unfortunately the only bugs I still get is the slow down when Im grabbed by a zombie or the spitter covers my screen in goo. And blood splatters on screen flicker with SLI enabled. Other than these bugs the game runs fine, I havent measured fps but it seems smooth and very playable.
When the game launched I was having issues like hard freezes and CTD's. But after the few patches they released and me changing some things the game is fine now. These are the things I changed but have no idea which one(s) were causing the issue:
* Removed the overclock on my CPU and RAM, put them both back to stock.
* Returned my page file to system controlled and not manually controlled.
* Upgraded from 8gb RAM to 16gb.
* Updated BIOS version.
* Made sure no programs were running in the background apart from Shadowplay when Im using it.
* Disabled AA ingame and use FXAA via NvCP instead.
Im gaming at 3200x1800 res downsampled and everything on max with 2x 980's on Windows 8.1 64 bit.