@newton_john roon sound quality has been an issue gor me for years. But dince the major update they deployed at end of April, it’s been more or less solid.
I don’t use any upsampling or EQ features in Roon. The core runs on nucleus one. Like I said it’s been good for about a month and a half now.
Give jplay a try. Doesn’t need a computer to run on. I find sound quality with jplay to be excellent. Easy to configure. You'll be up and running in under 5min.

