With so many albums, your 14 days trial period will be over before Roon has been able to identify them all.
Honestly, in my opinion, Roon is not designed (and capable) of supporting that hugh amount of albums.
And at the very least you will need a minimum of 32 GB RAM and probably lots more, to get Roon working.
the only workaround I see is to work with different folders, and only make 1 folder active at the time.
I have 2 main folders , in my case both active, but I have less than 3000 albums)
