Well, there is a zSmoothMouse value you may wanna fiddle with if you plan a replay in the foreseeable future. I may have to do it myself sometime, because although I fixed my turning problem with zMouseRotationScale, the control is indeed a bit dodgier with that + the new mouse than it was…
And yes Gothic 1/2 always had that strange "laggy" turn of the camera, but you indeed get used to it after a while