There is a tremendous and a weird type of lag which mostly happens near villagers at the time of their work. The rest of the time works fine.

This only occurs During the Villagers working hours.

Causes:

1. The lag caused won't allow the Player to fill their hunger bar.

2. Items when dropped or broken fall in a weird and laggy way on the surface. Its seems that it goes up and down and then slowly falls on the surface.

3. Near a lot of Villagers drops down the FPS.

Sorry, I can't really provide any photos or videos, but this can easily be recreated.