My Jonsbo CR-1400 ARGB isn't cooling enough during fights in No Rest for the Wicked, causing clock swings. Help?

During high-intensity fights, I noticed these micro-stutters that are absolutely lethal in a fast-paced action game. The Jonsbo CR-1400 is a compact cooler with a low ceiling, and under full load, it hits 85-89℃, causing the clocks to jump wildly between 3.0-4.2GHz. I tried capping the CPU state at 95%, which dropped temps by 6℃ but tanked my minimums from 60 to 48 FPS. I ended up reapplying high-end thermal paste and setting the fan curve to hit 100% at 65℃. RTSS showed temps stabilizing between 74-80℃, and frame times tightened from 12-30ms to 9-14ms. At first, the fans were constantly ramping up and down between 60-65℃, which was distracting, so I added a 5-degree hysteresis window to quiet them down. Fans now hold steady at 1500 RPM. Cinebench R23 confirms no more sudden clock drops.