My Zotac RTX 5070 Ti 16GB has wild core clock fluctuations during LoL team fights, how do I fix this?

I noticed these incredibly brief frame drops during intense team fights, and at 2K resolution, that lack of smoothness was just jarring. The default clock scheduling on the Zotac RTX 5070 Ti 16GB is way too aggressive for low-load games, causing the core clock to jump between 1.2GHz and 2.5GHz, which created a 8-20ms frame time jitter. I tried switching to Maximum Performance mode in the control panel, but while the average FPS went up, my 1% lows actually dropped by 10 frames, making me realize it was a voltage sync issue. I used a tuning tool to lock the core frequency at 2100MHz and set the core voltage to 0.95V. Monitoring with RTSS, the frame time variance shrunk from 10-35ms down to 6-11ms, and the tearing feeling is gone. The driver actually reset twice when I first locked the clock, and I had to nudge the memory clock to 10000MHz to stabilize it. Temps sat at 52-58℃ with fans at 1200-1400 RPM. Three hours of testing confirmed the sync link is solid.