Your description of the Witcher is kinda how I feel about Morrowind. Yeah, yeah, cool place, cool story, tons of amazing ideas, but the combat is horrible and everything is annoyingly tedious.
I enjoyed the first WItcher, but it's the only one I've played s far. Got a little ways into 2 but there's something about it that keeps making me drop it.
Also I don't know what you mean, the graphics and visuals in the original Witcher were great.