How do I stop GPU frequency jitter and frame drops during TEKKEN 8 combos?

I felt anxious when my Zotac RTX 5070 Ti stuttered during combos, with frequency bouncing between 2200-2400MHz. I tried manual overclocking, which caused a BSOD. I then used GamePP Power Plan Switcher to enable High Performance mode. Cinebench verified frequency stability at 2500-2600MHz, and RTSS showed frame rate improving from 75 to 95 FPS. My inputs are now perfectly responsive.