The demo has just been updated to version 0.0.0.20, which includes some FPS optimizations for super large factories.
Main changes:
Added "Turn On/Off All Autominers" buttons to the pause menu
Added new sounds & effects to the Rolling Mill
Added new sounds to the Sorting Conveyor
Added Save/Loading support for the Dynamite explosion
Updated Gold autominers to have a higher chance of getting Diamonds
Increased maximum conveyor support length, fixes weird floating supports when building above the ravine area.
Increased SoundPlayer pool size
Fixed crushed ore sometimes sitting inside the blast furnace, but not getting processed by it
Fixed a bug where the Rolling Mill would stop working if you press "Clear all physics objects" while it's is processing a plate
FPS optimization:
Added baked occlusion to the cave
Cached conveyor forward directions
Optimized Quest UI rebuilding
If you have a super large factory, please let me know if your FPS has improved!
Thank you for playing the MineMogul Demo! We look forward to all your feedback in the Steam Discussions and Discord.