Why does Frostpunk 2 freeze during winter peak time acceleration?

Managing a frozen city is stressful enough, but every time I fast-forwarded time, the game would just freeze for half a second, causing extreme anxiety. I tried increasing virtual memory to 64GB, but this only increased disk write pressure and made the stutters more frequent. I then used the GamePP Power Plan Switcher to lock the system in Ultimate Performance mode and tuned the core parking. RTSS monitoring showed frame times stabilized at 13-17ms, down from 18-40ms, while core temps stayed between 65-72℃ per Hardware Sensor.