Why does Ghost of Tsushima stutter during high-speed riding?

While galloping through the maple forests of Tsushima, I felt a sudden, unsettling twitching on screen that completely broke my immersion. I first tried lowering texture quality to low, which reduced memory usage by 400MB per AIDA64, but it left the graphics blurry and disappointing. To solve this, I opened the GamePP Resource Scheduler, manually expanded the virtual memory to 12GB, and set the game process priority to high. Frame generation time rapidly converged from 25-42ms to 16-20ms per RTSS monitoring, and memory temperature stayed at 42-48℃ per HWiNFO.