Moving around a long note in android version of Joplin has no problem, it's very easy and quick,
but...
You want to edit the first line of a long note, when you click on the edit icon, you will be put at the end of the note, then you will need move up,
but... very very slow,
and just climbing up a very mountain, very difficult!
I believe the best solution for this problem consists of two new features:
Put a redacting pointer at the same place where your note was in a moment of pressing the Edit button.
Add the function of creating Content in the note (how Markor from Android does). So if a user has a long note, they can open a note in the beginning, press the item in a Contents and be relocated to a needed place. After that, press the Edit button.