Something's seriously wrong with the autosave logic. I expect it to maybe save once every 3-5 minutes. Instead, the game starts autosaving within 10-20 seconds of starting a session. Then, for good measure, it autosaves again 10-20 seconds after finishing that. I spend more time with the save icon on the screen without. 

This exacerbates issues like MCPE-41479 because the game performs poorly while autosaving. Unfortunately since the game is always auto-saving that means the game is almost always performing poorly.

Maybe slow your roll and auto-save every few minutes, instead of aggressively autosaving the moment a block updates since the last auto-save.