My PA120 V3 keeps hitting thermal limits during stealth peaks in Splinter Cell Remake, causing huge drops. Why is this happening?

When the game handles complex dynamic shadow calculations, the CPU load hits these violent pulse-like jumps, sending core temps from 58°C to 94°C in literally one second, which absolutely nukes the clock speeds. The default fan curve on the Thermalright PA120 V3 is way too sluggish, meaning heat piles up before the heat pipes can even move it to the fins. I first tried locking the fans at 100% in the BIOS, but while it dropped temps by about 4°C, the noise was a total nightmare and drowned out the game audio. I eventually lowered the fan trigger threshold to 65°C and slashed the step response time to 0.1 seconds so the fans ramp up the moment the temp climbs. Monitoring via HWInfo showed the peak temps finally capped between 84°C - 88°C, and the clock speeds stopped cratering. I did hit a snag where the fans had a slight resonance hum, but that vanished once I tweaked the mounting bracket pressure. Now the fans sit at 1500-1700 RPM and everything is balanced. Stress tests confirm the frequency curve is flat now, with fans staying steady at 1500-1700 RPM.