as mentioned, this has already been implemented in v3.1
In my own testing i felt part of the issue at least for Album & Tracks layout was when you have very large artwork eg. 1000 x 1000px then MB takes a small but noticable time to scale the picture - it doesnt slow the actual scrolling but does make scrolling visually appear jerky.
So if peoples complaints are mostly with the Album & Tracks layout where you have very large artwork then i can easily port that part of the solution to v3.0.
In v3.1, it will also have a scroll smoother which i wont port to v3.0