I did a clean install too of the final version and although it works a tiny bit better with simple objects as soon as I bring in a poser human being the whole thing isn't worth trying to move the object around in it at all.
My other complaint is the time that it takes to render a spectral cloud and if that sort of thing is never improved I doubt I will be able to use those beautiful clouds because I do not have more than one computer nor the time to let a computer run a render about long.  The clouds were one main reason I bought this version.  Oh well just have to wait and see.

Life Requires Assembly and we all know how THAT goes!