Problem with Server in MCPE on iPad Air 2

The problem is the video frequently stalls when I travel by boat, horse or rail. I travel about 30 blocks and the terrain does not generate and I have to stop and wait 10-30 seconds while the program generates terrain. This problem seems to be only when my iPad Air 2 is acting as the server. When I connect to my Windows 10 CPU acting as a server, my iPad generates terrain without a problem.

Specs:
World Size 404mb
CPU: iPad Air 2
64gb Hard Drive 38gb free
iOS 10.3.3
RAM 2gb