Build 1920
iOS 26.0.1
iPad Air 3
Not sure if this was introduced lately  or was there.
The more your selected song is to the bottom of the list, the more sluggishness you see when opening the songlist
Closing it is nice and smooth.
There is also a visible scrolling taking place when you open it. Although the last song is selected and when I closed it, the list was scrolled to the bottom, when I open it, it show the top of my song list and then scrolls to the bottom.
There is also no scroll bar, but I don’t miss it. Just noting, in case it’s related 😂
 
Suggestion: maybe making the alphabet letter that shows up in the upper left a bit bigger and highlighted with the tint color would help. Currently it’s pretty hard to spot.