Why does Dying Light 2 hitch during high-speed parkour?

Leaping between skyscrapers was exhilarating, but then memory latency spiked, causing the screen to hitch. I tried enabling Low Latency mode in the driver panel, but it actually slowed input response by 5ms per RTSS. I used the GamePP Resource Scheduler to set the game's I/O priority to Highest and synchronized CPU/Memory states to high performance. RTSS showed frame times converged to 11-16ms, and AIDA64 confirmed temperatures between 48-55℃.