wow retail is much more taxing performance wise than wow classic.
wow classic graphics are from 2005 while wow retail overcharge wow engine to the maximum it can handles, the level of details is night and day between the 2 versions hence why you have to lower the settings for wow retail in order to get decent framerate.
that said for wow retail i’m fine with settings set to 7 with the following setup:
5820k @ 4.4
16 gb ddr4 @3ghz
gtx 1080
windows 10 64 bits
samsung ssds.
with your setup you should be able to run wow retail just fine i think, i’m not expert of amd cpu but yours is about the equal of mine i think.
btw did you choose the very first directX option ? (it says DX11 compatible) this is the way to go for vorpx.