Why does Enshrouded micro-stutter during large base construction?

Building a massive fortress became a nightmare when my CPU load spiked, causing maddening micro-stutters that made me genuinely anxious. I tried enabling Windows High Performance mode, but the increased voltage pushed temperatures even higher per HWInfo64, which felt counterproductive. I used the GamePP Fan Curve Configuration to set 60℃ as the trigger and locked fans to 100% at 80℃. RTSS monitoring showed frame times converged to 14-18ms, and HWInfo64 confirmed temps stabilized at 75-82℃.