I have the same problem. Finger off Vmware Workstation this days. I had the Version 12 with Windows 7. All guests in Windows 10 worked fast and efficient. I had to upgrade Windows 7 to 10 and therefore the  Workstation to 17.01. Cost a bit over 200 Dollars including taxes all wasted money. Most of guest are on a CPU load of 100%. The main system on 3 %. Crazy. Memory is 64 GB. Guest at 16 GB, No help, no use anymore. Some guests are running faster. I'm investigating it. Needs a lot of time. Thomas Hager