I buy tons of compilation box sets from HDTracks, Van Halen, America, Yes, ZZTop, The Cars, the Doors, David Bowie 69-73, David Bowie, 74-76, and many others. I ALWAYS split them up into their original albums and Roon finds them and displays them as such; which I then tag with an album version titled the name of the box set.
Here is the latest box set, David Bowie Who Can I Be Now? 74-76.
The first is a shot of the how I split the files up on the watched drive:
Then just to show you I did not change the meta data, here is the meta data in MP3Tag for station to station:
And finally, Roon showing the albums in their correct separation with my Album Version tagging
If you are having issues then feel free to PM about specific box sets and I will see if I can make suggestions so you have the same results.