Windows 8 slowdown since upgrading to Yosemite and Fusion 7
I also posted this on the VMWare forum: https://communities.vmware.com/message/2446538#2446538

I had an answer back from DrTone who said the following:


  Shutdown your VM and change your hardware mode from 11 to 10 and
  restart your VM.  Your performance should be back to what you expect. 
  Fusion has MAJOR issues with hardware level 11.


I did as he suggested and after some basic testing, performance appears to be back to where I was prior to upgrade which is good news.