TL;DR
I way to determine performance bottlenecks for big modded maps.What ?
Experienced people know that some game mechanics are less UPS/FPS friendly than others. Like replacing nuclear reactors with solars will reduce CPU load due to deletion of fluids calculations for water and steam. The same with drones against belts(as far as i know).I'm suggesting to add some debug info allowing people to understand what exactly slowing the game itself right now.