Hi guys,
I would love to help you with these strange problems. I have tested different OS types with gui and only daemon. Using windows 7 64bit , debian , ubuntu. On all these systems the 3.9 wallet is running fine without issues. All our nodes and services are updated and running 3.9 . None of these has any of the issues, you guys are complaining. I could just guess, that the daemon is not synced completly and therefor is using much CPU to catch up. I would just let it run a few hours or a day and check again.
regards
shahim