I’ve got the same problem. Roon Remote behaves fine on every other device including my ancient ipad Mini 2 and 6yr old 15" Macbook Pro.
Core is Roon Rock running on a separate Micro PC.
My Win 10 PC is the only platform running slowly.
PC system Specs are as follows:
Windows 10 Pro 64bit
Ryzen 3600
16GB 3200mhz Ram
Nvidia 3080
Drivers are all up to date and both drives are m.2 Samsung Evo something NVME.
I’ve uninstalled/rebooted/reinstalled several times without any success.
This Pc is really very fast for pretty much anything except Roon Remote at the moment.
This may or may not be useful information but I found when there is a window in the foreground but I still have control over the Roon window, it scrolls normally and without issue. The moment I select the Roon window again however, back to slow city.
Anyway I’ll try uninstalling/reinstalling the graphics drivers now.
This did indeed work!
I had recently switched from an Nvidia 2060 Super to a 3080, perhaps there were some driver overhangs.
Thank you for the solution.