Running Factorissimo 0.1.2 and 1.13.x ("Latest Experimental" on steam). I have about 15 mods installed total. I wanted to play a Factorissimo unique play through with very little built outside of factories. I rushed the tech and my first factory using a basic electric steam setup and burner drills for materials otherwise. As soon as I placed the factory, the game begins to lag. Something like 1-2 seconds of lag followed by only .5-1 second of normal play. I removed the factory and normal game play resumed. I've also restarted the game and the error is 100% reproducible.
Full mod list:
00 Bigger Stack Sizes_0.0.1
Advanced-Drills_0.1.6
Advanced-Electric_0.1.2
blueprint-string_3.0.3
EvoGUI_0.4.106
Factorissimo_0.1.2
FARL_0.5.35
fluid-barrel_1.1.1
GDIW_0.13.2
Landfill_2.1.10
long-reach_0.0.5
RailTanker_1.3.32
research-queue_1.3.0
robotarmy_0.2.0
rso-mod_2.0.11
TheFatController_0.4.18
YARM_0.7.102