When people pause the game, people just stand in one spot because the server is trying to load all 100+ peoples posion at the same time. And the server thinks that the game is still paused and you are playing the game.
MCPE-20452
Server is trying to load everyone's posion at the same time
Resolved
Invalid
0
(Unassigned)
Unconfirmed
Phone - Android - HTC One
Android 6
Server
1.0.4.11, 1.0.5.3
Retrieved
Sorry, but this ticket has been resolved as invalid. Mojang cannot control how 3rd party servers will react in different situations.