If the chunk draw distance in the video settings for a participant to a world is 64+, the world will be extremely heavy.
There is no way to prevent this from the world host.

Steps to Reproduce
Step 1: Open the world as multiplayer
Step 2: Set the chunk draw distance to 64+ from the video settings of the incoming player
Step 3: World TPS(Tick per second) drops and entities and commands run slower

Observed Results
As per reproduction procedure.

Expected Results
The world behaves as normal regardless of the participant's draw distance to the world.

Notes:
Realms automatically limits the number of chunks. I think it would be an improvement to introduce that feature in regular multiplayer worlds as well.