I keep getting these random stutters in Enshrouded during massive build scenes with my RT620P. Is it thermal throttling?

Whenever I was working on my massive fortress, the game would just hang for a fraction of a second, and it was driving me insane. Even though the PCCOOLER RT620P has a decent footprint, my core temps were spiking to 92-96℃ under heavy load, which triggered a brutal thermal throttle, tanking my clocks from 4.8GHz down to 3.2GHz. I tried enabling power-saving mode first, but that was a disaster—my FPS halved and the stuttering actually got worse. I eventually dove into the BIOS and shifted the fan trigger threshold from 60℃ down to 45℃, while setting a core voltage offset of -0.05V. Using HWiNFO, I saw the peak temps get clamped between 82-86℃, and the frequency swing dropped from 1.5GHz to a mere 200MHz. I did have a bit of a struggle where the system rebooted upon hitting the desktop during my first undervolt attempt; I had to back it off to -0.05V to actually get it stable. Now the CPU pulls around 95W and the fans sit steady at 1400-1600RPM. It's rock steady now, though the fan noise is definitely more noticeable.