My Maxsun MS-Challenger B850M-K is triggering power throttling and causing lag in Black Myth: Wukong; help!

This board struggles to breathe with a beast like Wukong. My clock speeds would suddenly plummet from 4.8GHz to 3.2GHz, and I actually laughed at how bad it was. HWInfo showed the VRMs hitting 85-92℃, triggering a hard thermal throttle that made my FPS bounce between 40 and 90. I tried capping the CPU at 65W, but losing 20% performance was a joke. I ended up zip-tying two small fans onto the VRMs and raising the power limit to 120W in BIOS. Now, VRM temps stay in the 72-78℃ range and the CPU holds 4.6-4.9 GHz. The first time I cranked the fan curve, it sounded like a vacuum cleaner in my room, but after smoothing out the temperature gradients, it's tolerable. CPU temps are 75-82℃ with fans spinning at 2200-2500 RPM. I exported the logs, and the power delivery is finally stable, though the noise is still a bit much.