Did you read my previous post? Roon does nothing so what resources is it using? Sure I have plenty of albums which can’t be identified but any album which I have to manually identify that turns out to have the exact title and artist as the one in the identified albums database is a total failure by Roon. so team Roon needs to fix this issue and stop wasting my resources.
This identifying discussion, while useful, is way off topic so let’s not continue it on this thread. Thanks!
Look, users on the forum have been discussing and collecting info about this periodic slowdown for two years. Nobody here knows exactly what it does when it goes wild, because we don’t have the code, but there is quite some evidence that it’s trying, in vain, to identify unidentified albums over and over. At some point, someone from support staff confirmed that this is expected behavior.
I have no idea why you have to manually identify so many albums.
It’s using CPU resources. It’s constantly trying to look up metadata for items that are not in the metadata databases it consults.
Thanks, @Suedkiez for adding this additional info.
Agreed but please just search for “unidentified albums”. Neither I nor @Suedkiez is defending Roon’s behavior. We’re just trying to help you understand this particular behavior Roon has since you are likely experiencing it due to the large number of unidentfied albums in your library.
Thank you gentlemen!
Just wanted to apologize for hijacking the thread. As you can tell, I do push Roon to its limits and then, for some strange reason, I get frustrated when things go awry. 
Again thank you all for your help and patience.
Back on topic. The recent (earlier this week) Roon update has been installed without any issues. 