Hi...
I don't think it will have anything to do with Windows 11 as I'm not seeing any slowdown on my Windows 11 system.
Some things worth checking:
1. Make sure you have updated iClone 8 to version 8.01.
2. Check that you have the latest graphics drivers installed.
3. Close down all other non essential applications and see if there is a performance increase.
4. If you have customised the Nvidia Graphics Settings for iClone, please restore them to the default global setting (application controlled as shown below). Customising the Nvidia settings is known to cause performance issues so is not recommended.
Peter
Forum Administrator
www.reallusion.com