I finally had time to upgrade the PC I run Roon on to latest Asus Nook 15 Pro mini-pc, cost <1K. This is most recent model with a lot more horsepower than my prior similar model that was almost 10 years old already, so was ready for an upgrade, especially in that Roon had been fussing about running on it quite a bit of late.
So far so good. Great performance overall, very quiet running, and Roon appears to be zipping along quite optimally now.
I’ll post if anything changes but Asus Nook 15 pro mini looks like a winner for running Roon. All problems gone, at least so far.
Moving my programs from old Windows 10 to new Windows 11 was a breeze, including Roon. All my Roon files are on a remote USB drive which I just connected to new PC, then shut down old PC, installed Roon on new, logged in, and restored my library from backup.
Nice!