I've had this bug for a while now and managed to change my configuration to make it go away.   Thought I'd pass along what I did.

I had shared folders enabled where I was sharing a folder on my MacBook with the Win10 VM.  I was getting the high CPU issue everyone was reporting.

I decided to move the shared folder off my MacBook to a NAS I have on the network.  I created the NAS folder and moved all the content to that folder.  Then turned off the 'Shared Folder' option and finally deleted the now empty folders.    Both the MacBook and the Win10 VM mount the new folder on the NAS so it looks similar to how I had it configured.

I've not had a single high CPU issue since the change.  I'm a happy camper.   Your milage may vary.  Good Luck

Gary