Why does Hitman 3 stutter in crowded areas with Ryzen 5 9600X?

While sneaking through the Dubai Shopping Mall as Agent 47, I felt the screen judder as frame times spiked, totally breaking my immersion. I first tried enabling PBO Enhanced Mode in the BIOS, but while clock speeds rose, the instant power draw hit the thermal wall, actually increasing the frequency of frame drops. I then used the GamePP Resource Scheduler to set the game's main process priority to Realtime and suspended background services. RTSS confirmed frame generation intervals converged to 12-16ms, and AIDA64 showed CPU temperatures stable at 68-74℃.