pkt-zer0: I'd like to add that it has unusually low system requirements for a game built on the Aurora engine. Even if they went from "quite horrible" to "fairly decent", they did an admirable job. Hopefully they'll have enough cash/time to have a better engine underneath the inevitable sequel.
Weclock: well, er, I haven't read the system requirements, but I have a fairly higher end system, and my fps drops fairly low.. when in other games like l4d, ut3, or cod4, no issues are found..
It seems that gamers with similar hardware have sometimes very different results playing the game. When I bought the first release it was working quite decently on my rig, whereas now, when I added RAM and upgraded my video card the Witcher EE is suddenly working slower... Nevertheless I'm determined to find the reason why, and I have a strong feeling that it must be a small and otherwise insignificant system setting responsible for this. I can still remember the first NWN and the ugly water rendering (and game performance when around water) on Ati cards. One small switch in-game and suddenly game gains a 500% speed boost, not to mention nice-looking water ;)