Why do I experience micro-stutters in crowded medieval towns?

I felt totally disconnected from the world; every time I hit a crowded street, these tiny stutters just killed the immersion. I first tried enabling Extreme Performance mode in the BIOS, but my CPU temps instantly soared to 88℃ per AIDA64, causing thermal throttling that made the lag even worse. I then used the GamePP Resource Scheduler to set the game process priority to Realtime and killed redundant background services. RTSS monitoring showed frame times converged from 16-32ms to 14-18ms, while HWiNFO64 confirmed temps at 44-50℃ and GamePP Hardware Sensor clocked memory controller latency at 82-94ns.