Hi everyone! I’ve recently upgraded to a new high-end setup and I’m trying to understand a few performance-related things in MSFS 2024. After switching to an AMD 9950X3D and RTX 5090, I configured the system so that MSFS runs only on the CCD cores with 3D V-Cache. Overall, things are working well, …

A long time ago, during a long-haul flight, I was downloading in the content manager. After several hours of flight, the RAM usage was extremely high while the CPU and GPU usage were very low. Only after restarting MSFS2020 did it return to normal.

It is a big known issue since many beta updates and it got shipped with final SU3 without fixing it. It is a mainthread issue. See here: [image] Mainthread loads up more and more and doesn't recover Install, Performance & Graphics First some Info’s to my har…

FPS Drops After Flights and Doesn’t Recover even in menu

User Support Hub Install, Performance & Graphics

PaRaBaS6435 August 21, 2025, 7:43pm 3

It is a big known issue since many beta updates and it got shipped with final SU3 without fixing it.

It is a mainthread issue.

See here:

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