Just for the record, I had reported (since deleted by system) 20 seconds of shaking and shuddering on startup which I thought went away with a Windows update except it came back. I think the recent update demands drove my 8 GB graphics card into stealing some system RAM as Nvidia was showing 8.9 GB of graphics memory in use with 80% GPU utilisation and 15% of CPU.
I changed the graphics settings from ULTRA to HIGH (or less for trees and buildings) and the utilisation is now 60% and 25% (busiest core) which might be reasonable at 4K. The graphics memory in use is now 6 to 7 GB and the sim is nice and smooth all the time. It doesn’t look noticeably different!
Edit, just saw the beta was updated 29th January, same day the shudder etc came back.
