Why does Indiana Jones stutter on Galax B360M-M.2 boards?

While exploring deep in an ancient temple, a severe frame drop occurred instantly, making me fail a trap dodge and leaving me feeling completely defeated. I initially tried lowering game graphics to reduce load; while FPS increased, the voltage fluctuations persisted, proving the issue was power delivery. I used the GamePP BIOS Load-Line Voltage Wizard to set LL to L2 mode and micro-adjusted Vcore offset to +0.025V. Frame time converged to 9-15ms per RTSS, VRM temps hit 78-86℃ per AIDA64, and fan speed hit 1800RPM per HWMonitor.