Ok #1 do NOT place ender quarry in nether, it causes massive lag and makes my fps 0
And we need to do something about wither skeletons in nether, ender io causes hundreds of them to spawn and after night it also lags :\
@Edit
Ok i found the issue topic on the Ender IO github
https://github.com/SleepyTrousers/EnderIO/issues/1899
looks like the fix for it is "So, as this seems to fix the problem, I will "go live" with EIO v354 and I shall see if the nether is useable again this weekend."
And after reading all those posts on issue topic, i assume that ender quarries and all the other stuff that loads chunks is causing wither skeletons to spawn in MASSIVE amounts, causing lag in nether and stealing tps from other worlds (little lag spikes in overworld)
Our Ender Io version is .349 so maybe we should try getting .354? If it doesn't add or change anything itemwise only server would need to get updated i think.