My MSI A520M-A PRO keeps triggering instant clock drops during complex ruin loads; why is this?

Whenever I stepped into those dark underground tombs, my frame rate would tank from 75 FPS down to 32 FPS, making the controls feel incredibly sluggish. I checked HWiNFO and saw the VRM temperatures on the MSI A520M-A PRO spiking to 92-98℃ under load, causing the CPU clock to bounce violently between 3.6 GHz and 4.2 GHz. I first tried enabling High Performance mode in Windows, but that actually made it worse because the extra heat triggered more frequent throttling—a total nightmare. I eventually dove into the BIOS Advanced settings, switched the CPU Power Limit from Auto to a manual 65W, and set the Load-Line Calibration to Medium. After that, the clock fluctuations in HWiNFO shrank from 600 MHz to under 100 MHz, and my frame times stabilized between 13-16 ms. I did hit a snag early on where dropping the voltage to 1.1V caused a blue screen, but bumping it back to 1.15V fixed everything. Now the VRMs hover around 82-86℃ with fans spinning at 1400 RPM. Saved the profile in BIOS and it's rock steady.