Why does Zenless Zone Zero stutter on Colorful BATTLE-AX B850M-PLUS S WIFI7 V14?

I panicked during Bangboo combat, fearing frame drops would ruin my limited-time weapon acquisition. Adding a high-RPM fan failed, only dropping temps by 3°C. I used the GamePP Fan Curve Configuration Panel to start fans at 60°C and max out speed. The chipset temperature stabilized at 72-75°C, and the 1% Low frame rate jumped from 45 to 60 FPS.