Ok, so there is this bug referred to as the sensitivity bug AKA the "Sens glitch".
Minecraft is a game where it can be any pace you choose. I for one, like fast paced games, so I make minecraft one of it. This Sens glitch, is not really a glitch, it's a bug, hence the report type.
It makes it so when you swipe fast, it would result in a laggy, buggy swipe that doesn't register fully and/or at all. This was noticed by 1.0/0.17 and is still noticed today.

All in all, this bug has destroyed the minecraft community and has caused a lot of fast paced players to quit being how hard it makes survival or anything. If you see people playing in under 1.0, they don't have a problem swiping fast. this is what the community wants.