Hello mojang,
This has been a problem for me since December of 2016 I haven't played Minecraft pe since. This is a problem when u try to turn you player head around rapidly and it is sluggish or laggy. Here is a case that was not solved and is he same issue as mine:https://bugs.mojang.com/browse/MCPE-16688
I hope we can finally put this case as resolve.
Thank you for your time,
Obiwan(Also I play on a Kindle fire hd 2012 version)