I just recently discovered that music cover arts in Apple Music are way higher quality/resolution than the ones on Spotify, I think you should look into this and try to improve the quality of the cover arts because having a quality cover art just adds to the experience more than you think. I've attached an example of the same cover art, one from Apple Music and one from Spotify. As you can see, the AM music one is way higher quality than the Spotify one. This example is just one of many that I've noticed and I think it's good that you look into it and better the quality.
(Spotify is the ones with the brown background, while Apple Music is the one with the white)