Performance/other issues after Win10 upgrade on OS X Host

[Vale46]

After the latest Win10 major upgrade this past weekend (named developers upgrade I think), the performance of my Win 10 guest is noticeably worse with high CPU usage and laggy apps in Win10. The VM startup is also not as smooth as before with screen flickering during Win10 boot up. In addition going to full screen on two Mac displays is also often glitchy. Will post a VB log file shortly for developers/moderators to dig deeper, but wanted to check if anyone having similar issues.

Thanks
Ash

[Vale46]

log file attached. Notice my VM file is an .hdd file originally from the Parallels VM which I ported over to VB about a year ago.

[socratis]

1. Your 3D acceleration is disabled. Shut down the VM, go to VM settings » Display.
2. You still have the "VBoxGuestAdditions.iso" attached to the VM. You should eject it always after you're done with the GAs installation.
3. Try to start with 1 monitor attached. And avoid FullScreen mode.
4. You have two physical cores. You have assigned both of them to the VM. Try with one only:

   00:00:01.489356   NumCPUs           <integer> = 0x0000000000000002 (2)
   00:00:01.909902 CPUM: Logical host processors: 4 present, 4 max, 4 online, online mask: 000000000000000f
   00:00:01.909909 CPUM: Physical host cores: 2