How do I stop frame generation jitter in Black Myth: Wukong on Onda H610M?

Stealthing in Black Wind Mountain was ruined by constant stuttering. Frame time fluctuated wildly from 10ms to 18ms per GamePP, making it hard to time attacks. I initially tried manually overclocking the CPU, but the system became unstable and crashed, which was anxiety-inducing. The real fix was simpler. I used the GamePP Power Plan Switcher to change the mode from Balanced to High Performance. This allowed the CPU to maintain higher clocks under load. The frequency curve smoothed out, holding steady at 4.8-5.