My Hyper 612 APEX is reacting too slowly in Metaphor: ReFantazio, causing CPU clock fluctuations, should I tweak the delay?

Seeing the frame times lock back in at 16ms was an absolute rush! Previously, the Hyper 612 APEX was struggling with light-to-medium loads, with the fans constantly hunting between 800 RPM and 1500 RPM. This caused the CPU to bounce between 55°C and 75°C, which in turn made the clock speeds jump wildly from 3.6GHz to 4.8GHz. I tried disabling Core Parking in Windows, but that just added 15W to the power draw without fixing the micro-stutters—just another frustrating dead end. I went into the BIOS and extended the fan step response delay from 1 second to 5 seconds, and added