Why does my Soyo H410M VRM overheat in Tomb Raider?

I was deep in a Tomb Raider dungeon when my frame rate crashed from 60 to 45 FPS. AIDA64 showed my Soyo SY-狂龙 H410M VRM spiking to 88°C, triggering CPU downclocking. I initially cranked the case fans to max, but the noise was unbearable and the temperature stayed stuck between 82-90°C. I switched to the GamePP Fan Curve Configuration tool and set a hard threshold of 1800 RPM at 80°C. After applying the curve, the VRM temperature stabilized at 75-78°C per AIDA64 monitoring. The frame rate locked at 60 FPS with consistent 16.7ms frame times via RTSS. This configuration saved my rig from thermal throttling.