Why does Tomb Raider stutter during large-scale physics collapses?

While climbing through ancient jungles, every time a large-scale physics collapse triggered, the screen would stutter without warning. I tried enabling Extreme Performance mode in BIOS, but the power spike caused a BSOD and system reboot, which was incredibly frustrating. I used the GamePP BIOS Load-Line Voltage Adjustment Wizard to set the load-line to L2 and tuned Vcore to 1.31V. RTSS showed frame times stabilized at 11-14ms, AIDA64 confirmed VRM temperatures at 66-72℃, and CPU-Z tracked frequencies between 3.4-4.1 GHz.