I'm getting massive frame drops in Stellar Blade during fast combat because my B240 pump is too slow to react. Why does this keep happening?

Whenever the action picks up, my CPU temps were jumping wildly between 65°C and 88°C, which made my fans oscillate between 1000 and 2200 RPM with this obnoxious resonance noise. I tried the 'Silent' profile in the motherboard software, but that was a disaster; temps hit 94°C instantly, triggering thermal throttling and making the game stutter like crazy. I eventually went into the BIOS, navigated to Hardware Monitor, and forced the pump header to Full Speed mode (100% DC), which killed the whining noise entirely. Using HWiNFO, I saw the core temps stabilize between 68-74°C, and my frame times dropped from a messy 14-28ms down to a rock steady 9-13ms. I actually struggled with a 75°C trigger point at first, but adding a 0.5-second fan step-up delay finally suppressed those instant spikes. Now the heatsink stays around 42-48°C and it's nearly silent at night. Ran a Prime95 stress test and the fan speed holds steady at 1400-1600RPM without any hiccups.