Hi, I have the latest Parallels 12 Pro edition, using the latest Windows 10 on macOS Sierra. Even a few months after release, the graphics performance is still horrible, effectively preventing me from using my VM. Here is a video (I recommend watching it fullscreen on Youtube): It feels exactly how it looks like (graphical reactions to mouse input take up to one second). It has been like that from Day 1, subsequent updates did not change anything. Windows 10 is practically unusable. I tried fixing it myself, without success. In particular I tried: Reinstalling Parallels Tools, several times. Updating Windows 10 Changing all available Parallels graphics settings (in particular: scaling, DX emulation, synchronization, available video memory) Hypervisor settings I feel I am out of options and reinstalling the VM is not one of them. I would be very grateful for any clue how to fix this. Thanks!