My RT500 TC can't handle high settings in FF XVI, and my clock speeds are collapsing. Can I fix this by changing process priority?

Using this cooler for these graphics is like bringing a knife to a gunfight; temps hit 98°C instantly and trigger a hard throttle, dropping my clock from 4.8GHz to 2.1GHz. It's absolute madness. The heat pipe scale on the RT500 TC is just completely overwhelmed, pushing the CPU into thermal protection within 3 seconds. I tried taking the side panel off my case, which dropped temps by 5°C but let dust in like crazy and didn't stop the drops—totally useless. I eventually went into the BIOS for some undervolting, setting a core voltage offset of -0.05V and moving the fan trigger up to 55°C. RTSS shows the clock finally stabilizing around 4.1GHz without those catastrophic crashes. I did have some boot-up freezes when I first lowered the voltage, so I had to dial it back to -0.03V to get it stable. Temps are still struggling between 86°C - 93°C. I exported the logs from my analysis tool, and frame times are now holding steady at 5.1-6.4ms.