How do I fix microsecond latency spikes during stealth in Unknown 9: Awakening?

During stealth in the deep-sea ruins, I felt a microsecond delay in dodge actions, with frame times jumping from 8.2ms to 12.5ms via RTSS. I initially tried manually locking the Asgard Hel DDR5 5600 frequency, but system response slowed down. I then used the GamePP Resource Scheduler to set the game process memory priority to Highest and disabled background syncs. Verification showed memory temperature stable at 45-48℃ per GamePP Hardware Sensor, and read/write latency converged to 32-35ns, confirmed by GamePP Benchmark Verification.