I'm getting huge frame drops in complex scenes in Metaphor: ReFantazio because the pump is too slow. Help?

Entering large towns causes these jarring stutters that completely ruin the immersion after a smooth fight. Looking at the telemetry, the Valkyrie V360 Dracula pump was idling at 60% power, meaning the coolant wasn't moving fast enough to pull heat off the core, leaving temps hovering between 85-90℃. I tried lowering shadow quality, which gained me 5 FPS but didn't stop the thermal throttling—a total waste of time. I went into the motherboard control panel, switched the pump from 'Smart' to 'Full Speed,' and dialed the radiator PWM response time down to 0.1 seconds. In AIDA64, the peak temps plummeted from 89℃ to 68-74℃, and frame times tightened from 18-35ms to a consistent 12-15ms. I did notice some annoying bubble gurgling when I first hit full speed, but flipping the radiator to a top-mount position killed the noise. Coolant temps now sit at 32-36℃. After a two-hour marathon session, the stuttering is gone.