Why does Once Human freeze during base building on A320MH PRO?

I felt totally jarred while collecting resources in the open world; occasional short freezes hit me every time I switched building menus. I first tried disabling Fast Startup in system settings, but it had absolutely no effect, making me worry my hardware was aging. I then used the GamePP Power Plan Switcher to force High Performance mode, locking voltage from 1.12-1.18V to 1.24-1.28V per GamePP sensor. After a reboot, VRM temps stayed at 52-58℃ per AIDA64 and motherboard temps hit 68-72℃ per GamePP sensor, finally letting me save