I'm getting micro-stutters during teamfights in League of Legends. Should I change the fan curve on my AK620?

During intense teamfights, the game would just hitch for a split second. It's not a constant lag, but it's enough to throw off your skillshots. I noticed that while LoL isn't heavy on the CPU, the AK620's default fan curve was way too lazy below 60℃. This caused the CPU to spike to 82-88℃ during bursty loads, making the frame time fluctuate. I tried limiting the CPU to 99% in Windows, but that just dropped my 1% lows from 110 FPS to 90 FPS—not a great trade-off. I went into the BIOS and slashed the fan response time from 2 seconds down to 0.5 seconds, and set a steep linear ramp between 60-80℃. RivaTuner showed the frame intervals tighten from 12-25ms down to 8-12ms. I did have some annoying resonance noise at low speeds at first, but setting a minimum floor of 800 RPM fixed it. Now cores stay at 62-68℃ and the input feel is instant.