Would it be possible to add BPM (unsorted) to playlist track sorting? Currently BPM sorting is done alphabetically.

TIA

Not sure what you mean? BPM sorts highest to lowest or lowest to highest on desktop and mobile.

Yes it sorts by BPM but then puts all tracks with the same BPM into alphabetical order. Rekordbox has 2 BPM sorting options:

BPM : (behaves as above)
BPM unsorted : Does not sort alphabetically - tracks remain in playlist order but grouped by BPM

We could do that, but your BPM values might be slightly different. They are rounded to a whole number in the UI, but if you check track info they might be more precise thus giving you potentially unexpected ordering.