Why does my Colorful B450M-T M.2 V14 keep throttling the CPU in dense forests in the Witcher Remake? Do I need more virtual memory?

Watching the frame rate jump around like a heart monitor was giving me genuine anxiety. The VRM cooling on the Colorful B450M-T just can't handle the heavy instruction sets of the Remake; as soon as the core hit 92-98℃, the clock speeds would tank. I first tried enabling the Ultimate Performance mode in Windows, but that just pushed the CPU to 100℃ and caused a hard system reboot—a total nightmare of a trial-and-error process. I eventually went into the BIOS and manually set the PL1 and PL2 power limits to 105W, and undervolted the CPU core to 1.18V to bring the heat down. Using RTSS, I saw the 1% lows jump from 22 FPS to 41 FPS, and the frame time variance shrank from a wild 25-60ms down to 18-24ms. I did hit a BSOD when I first lowered the voltage, but adding a small +0.02V offset fixed the stability. VRM temps now hover between 82-88℃ with fans pinned at max. Cinebench loops confirm the clocks aren't dropping anymore, and the input lag is finally gone.