I have no idea what causes this but any version past like 1.10.0-pre6 just starts thermal throttling my CPU when I'm in a dungeon, normally my CPU temps are between 55c and 70c, but when using an updated version I see temps of 85c+ constantly, I have a 7800x3D with a 360mm AIO and only get this issue with updated skytils, my AMD Adrenaline reports it however doesnt use my CPU and stays at like 20% usage which is normal it's literally just the temperature.
#CPU thermal throttling past update
safe veldt