Mod Name: DynamicView
Purpose: helps balance lag(tps) and chunk view/load distance
Requires: No requirements
Versions(s): 1.12,1.12.1,1.12.2,1.15,1. 15.1, 1.15.2,1.16,1.16.1,1.16.2
Personal rating:10/10 (really helped with my lag)
Description: This is a small/light serverside utility mod to help balancing lag(tps) and chunk view/load distance. When the server is not lagging it increases the chunk view distance, once it goes over the given lag threshold it reduces the chunk view distance.
Mod website and download:https://www.curseforge.com/minecraft/mc-mods/dynamic-view