I have the same problem, after I upgraded to Mojave (converting my fusion drive to APFS) and upgraded VMware Fusion from 8.x to 11.x. Even in VMware Fusion 8.x, where Windows 10 wasn't supported, I didn't have any problem before the macOS+Fusion upgrades. And the problem is not only with my main virtual machine (borne with Windows 7 and upgraded to Windows 10 in Fusion 8.x), but even in Windows XP VM (not as serious as with Windows 10 VM). I must say that's not an every time issue... sometime VM resumes normally, but sometimes Windows 10 VM need about an hour... really frustrating. And all computer becomes really slow in the meantime.
But I invite you and all the people that experience this issue to contact VMware support ( https://my.vmware.com/group/vmware/get-help/ ), tell them about your experience and give all the reports you can (starting reading this: VMware Knowledge Base ), as I did. They are working on the issue, but more reports there are, and better and sooner they can solve the problem.