SkyPup, what are your systems specs? My specs are core2duo running at 3ghz, 4gig of ddr3 ram and an nvidia gtx460. These are my CLoD video settings;
With this I get a smoothish game with this performance;
If you have an nvidia card, I also enable fxaa in the nvidia control panel. Oh yeah, get rid of the (useless) mirror on Hurri and Spit for an extra 10-15fps!!