lag peak

When creating a new world in realms there are lag spikes when crossing from one chunk to another. 

What I expected to happen was...:
what I think should happen is that when moving from one chunk to another it should not cause that lag spike.

What actually happened was...:
To reproduce the bug is easy.

Steps to Reproduce:
1. first you must create a new world in your realms
2.use F3-G to see chunks and Shift + Alt + F3 to see the other bar (I don't remember what it's called)
3. find the limit of a chunk and cross to another.

4. note: you can use the following seed and coordinates.
seed: -1535938722
Cord: -24,583 73 16,689