I played with the global mods Space exploration + Krastorio

Serious problems with UPS, it falls critically. Analyzed different bundles of mods and found the following:
1) a problem arises on another planet different from home.
2) anti-meteorite guns must be installed (from SE).
3) As soon as miners start to run out of the depot, unit_time jumps from 0.1 to 100-200 with serious lags.
4) Removing miners from the depot / removing the beltlayer mod / removing MD mod solves the problem.

Thanks for the detailed research! And sorry for the late reply, I was IRL, out of Factorio and modding...
The problem seems to be a very complicated mix of circumstances, I never met anything like this. MD has not special behaviour for SE and its anti-meteorite guns, nor for K2, or BeltLayer. Miner drones only request Factorio game engine for paths to ores, than just follow their ways. IDK, maybe BeltLayer makes some complications for their ways, or SE tracks miner units with underground belts 🤔 I'll try to find some time to research the issue, but I never debugged Factorio mods performance, so any technical help is appropriated!