My FPS tanks during team fights in Overwatch 2 on a Z370M Pro4, can priority settings fix this?

Seeing my frame rate plummet from 144 FPS down to 45 FPS mid-fight is a nightmare. Looking at the logs, the ASRock Z370M Pro4 VRMs were hitting a 0.08V dip whenever the CPU boosted to 4.1GHz, forcing the clock speeds to tank. I tried lowering the graphics to Medium, but the stuttering persisted, which told me this was a hardware power issue. I went into the BIOS Advanced Voltage settings, set the Load-Line Calibration (LLC) to Level 2, and tweaked VCCIO to 1.05V. Monitoring via RTSS, my 1% lows climbed from 45 FPS to 88 FPS, and the frame time graph stopped looking like a mountain range. I actually ran into memory parity errors after the first tweak, so I had to drop the RAM clock from 2666MHz to 2400MHz to stop the crashing. VRM temps now hover between 65°C - 72°C with fans at 2000 RPM. 3DMark stress tests confirm the voltage is stable, though RAM stays a bit warm at 58°C - 63°C.