Lyrics Out of Sync

Diana Krall, Live in Paris, “A Case of You”…not close

Yes, timed lyrics usually only match a specific performance exactly. Using timed lyrics from the album version of a song for a live performance may lead to quite a difference.

Is there any insight about how Roon matches lyrics to performances?
I can’t remember that I’ve ever seen a post about it or who’s the lyrics provider (just in case we have to blame him).