How do I fix frame generation jitter in Minecraft (RTX) caused by CPU temperature spikes?

I was losing my mind in Minecraft (RTX) because the PCCOOLER AK500 WHITE ARGB Ice Cube fan response lagged, causing core temperature to spike from 70C to 86C. I tried forcing the fan speed to maximum, but the noise was excessive and the peak temperature didn't drop, which made me anxious. I used the GamePP Fan Curve Configuration panel to raise the RPM at 85C to 1600 and optimized the linear heating interval. Core temperature stabilized at 72-75C per AIDA64, and frame generation time converged to 10-12ms per GamePP benchmark verification.