Why does my Galax B760M D4 Black Knight trigger sudden clock speed drops during massive monster fights?

Whenever a huge pack of monsters spawns, my frame rate just tanks from 90 FPS down to 42 FPS without any warning, which completely kills the flow of the hunt. I dug into the logs and found the VRM on the Galax B760M D4 Black Knight was struggling; the Vcore was bouncing wildly between 1.18V and 1.24V, causing the CPU clocks to jump between 3.8 and 4.5 GHz. It was a total mess. I first tried enabling Multi-Core Enhancement in the BIOS, but that was a disaster—temps spiked to 98℃ and triggered a hard thermal throttle. I eventually went into Advanced Voltage Settings, set a manual Vcore offset of +0.05V, and locked the power limit at 125W. Checking HWiNFO, the voltage ripple shrank from 60mV to about 15mV, and frame times finally stabilized between 11-14ms. It wasn't a walk in the park, though; the system failed to POST twice after the first tweak until I switched the Load-Line Calibration to Medium. Now, VRM temps sit at 62-68℃ and the core stays between 75-82℃. The power delivery is finally linear and the settings are locked in.