Describe the bug
I am using DynamicTrees together with Traverse, and the area where I am established has begun to cause a considerable delay for a few days.
Basically the server takes too long to load the area near my base, there are no mod objects, no farms or redstone systems.
This does not happen if I explore new areas of the map.
The profiler is showing that the cause is DynamicTrees.

Screenshots

Rendering Glitches
Are you using Optifine? Yes

Mods List
forge-1.12.2-14.23.5.2846
DynamicTrees-1.12.2-0.9.6.jar
Traverse-1.12.2-1.6.0-69.jar
spongeforge-1.12.2-2838-7.1.8-RC3963.jar

Strange. According to your results this occurs when a chunk is unloaded. Which is a rather straightforward dump of a tiny amount of data that is saved. I notice that you're using spongeforge which historically has caused unexplained harmful interactions with DT.

Use normal Forge.