[mrWiz]

Apple Music got extremely slow for me in (atypical, granted) situations that used to be perfectly snappy. I keep recordings of a radio show in my Music library, with the whole series tagged as a single album, each "episode" as a separate disc, and each half of the episode as its own track. This makes it easy to scroll through, browsing to pick what I want to listen to. But now with 26 Music has been chugging whenever I open the album - it takes ~20 seconds before it starts responding smoothly again. I'll concede that having 1000+ discs within a single album isn't a normal use-case, but this has worked properly for the last decade before they screwed it up.