@STU-C , this is the same issue we were discussing a few days ago.
it’s something to do with the event handling and inertial scroll of the buffered views.
@brianr , i’m sure if you have enough playlists, you can do the same thing with the tree view on the left. This has been an issue for me for quite some time as posted here on March 2022: Tree and listview scroll logic is off (stutters with trackpad + inertial scroll)