I am completely with you on this one.
Even when Yosemite came out with VMF7 the graphics were horribly and noticeably slow after using VMF6 for quite some time.
The Windows Experience Index indicates this as well on a thread that I've followed for quite some time, but never got a resolution to it:
Fusion 7 graphics performance - Windows Experience Index drops
I thought that the issue would have at least improved in VMF8 but it actually got worse... Chrome windows are so choppy... how did this even pass the surface testing phase in your SDLC?! How can "worse" graphics performance equate to "advanced" graphics performance according to your pointed marketing?
Run Windows on a Mac: VMware FUsion Features | United States
At this point, Parallels is at least worth a try if VMF keeps getting slower with each major release.
What gets me is that the minor releases don't even fix these things...