I am currently running Minecraft 1.10.2 with quite a few mods and have no problems, but as soon as I installed this mod I noticed a quite dramatic memory leak. Lag spikes at random times, and sometimes my hard disk has to be used, likely because of swap-to-disk occurring. Perhaps look into what is causing this?
I tend to stay around the spawn chunks, only going out to find new villages or delving deep into my mine to look for ore.

I've left the mod running for days at a time in stormy weather etc, no issues with leaks, try giving java more memory to work with, the mod isn't exactly lightweight.

Okay, seems 1.11.2's version is better, especially with 4gb allocated. I'm good.