When the ROON application client is maximized my GPU hits 100%, when the application window is set to restore (not maximized) the GPU is around 50%, and when the application window is minimized the GPU is very low (which is great). My CPU follows the same usage pattern with highest on maximized and lower on restore and lowest on minimized.
What this means is that if I am playing music with the ROON application window maximized my GPU and CPU are working extra hard and my cooling fans come on. Which is noisy. If I minimize the ROON application window my GPU and CPU have very little work to do and the fans shut down and the computer is silent.
Seems like a bug to me and not a feature.
Seems like this is a known problem on Macs, I am using Windows.
https://community.roonlabs.com/t/high-cpu-and-gpu-usage-on-macbook-pro-2020/114416