Why does Metro Exodus crash when loading outdoor maps?

Every time I entered a vast outdoor scene, the game crashed without warning, creating immense anxiety. I initially tried increasing virtual memory to 64GB, but loading times increased by 10 seconds per RTSS and crashes continued. Through the GamePP Resource Scheduler, I set the storage I/O process priority to 'Realtime' and restricted background sync. GamePP confirmed read/write latency stabilized at 65-72ns, and AIDA64 showed temperatures at 46-52℃.