Why does DEATH STRANDING 2 have sudden FPS drops?

In fast-paced matches, frames would plummet from 300 to 120 without warning, accompanied by slight screen tearing. I first tried enabling 'Extreme Performance' in the driver panel; while peak frames rose, the frequency of drops actually increased. I then used the GamePP BIOS Load-Line Voltage Adjustment Guide to nudge memory voltage from 1.35V to 1.38V. 3DMark stress tests showed frame times stabilized at 3-6ms per RTSS, and GamePP confirmed voltage maintained at 1.37-1.39V. Stability is finally achieved.