My fans are oscillating wildly during massive battles in Planetside Aftermath; is this sensor drift, and how do I rewrite the thermal curves?

Sensors often overreact to aggressive power swings. Thermal log 2026-TH-55, using WD Black SN850X with Heatsink, showed fan RPM erratic jumps between 1200 - 2500 RPM, peaking at 3100 RPM, resulting in a loud, jet-like whine. Initially, dropping the baseline PWM duty cycle caused core temps to spike by 10℃ instantly, which felt glitchy and dangerous. I then entered the BIOS hardware monitoring page, switched from Smart to Manual mode, and mapped a tiered curve: 40% load for 50℃ - 65℃ and 60% for 66℃ - 80℃. This smoothed out the transitions perfectly, making the acoustics rock steady. While the noise level is now suppressed between 40dB - 45dB, it means I have traded off some peak thermal headroom, potentially leading to minor heat accumulation during mid-summer sessions.