How to fix micro-stutters when flying over cities in MS Flight Simulator?

Flying over New York City, the frequent micro-stutters made the experience feel disjointed and anxiety-inducing. I first tried closing all background apps, which only freed 800MB and didn't stop the frame drops, leaving me feeling frantic. I used the GamePP Resource Scheduler to set memory priority to Realtime and restricted the system index service. Response latency converged to 62-68ms per AIDA64, memory usage held at 14.5-15.2GB per HWiNFO, and temps stayed at 42-48℃ per HWiNFO.