Issue description
I have been playing CoI for about 8 hours on this save, just past all the construction 2, about to begin construction 3 (not a big factory at all), until the game suddenly started showing issues with keeping steady frame rate, having really unstable fps, to the point it briefly freezes for less than a second often. When I look at what is causing the frame drops, is spikes in CPU use. The issues shouldn't be related to hardware, as the laptop I'm using meets recommended requirements easily. I'll add a picture showing the CPU usage showing the spikes. Although the GPU is also heavily used on the game settings I used in the screenshot, I found out it wasn't causing the instability, as on lower settings the game would still persist in having issues keeping stable fps. I also had more extreme spikes(and frame drops) than in the screenshot later on during testing.

Reproduction steps
- Load save 2. move around in game. 3. notice frame drops happen pretty much after a couple seconds
Game version and build number
v0.6.4d b343
Operating system
Windows
Attachments
Save 2024-10-19, 15-33-21.save
Files not imported: Save 2024-10-19, 15-33-21.save