Why does my SCARLET NEXUS stutter during rapid camera switches?

I was losing the flow in every combo burst because the Biostar H310MHP northbridge hit 82-88℃, forcing memory channels to downclock. I tried lowering graphics quality, but the input lag persisted, which was unacceptable. I then opened the GamePP Hardware Sensor Page, switched the fan curve to a linear smooth ramp, and locked RPM at 1800. Post-fix, HWiNFO showed the northbridge stable at 65-70℃, and RTSS confirmed frame generation jitter eliminated, finally saving my gaming session.