Why does my FPS drop when casting skills in Banishers?

During exorcism missions, casting large skills made my fans roar while the FPS plummeted—classic thermal throttling. I tried setting the fan to Silent in BIOS, but the temp shot up to 95℃ per AIDA64, which was terrifying. I used GamePP Fan Curve Configuration to lower the trigger threshold to 62℃ and response time to 1.5s. Frame times now sit at 14-18ms via RivaTuner, with temps at 66-72℃ per HWMonitor.