UPDATE – One noticeable reason for the heavy stutters, aka performance degradation issue, is mesh. After SU7, there has been a change in how the mesh is processed, meaning older mesh data causes stuttering. We believe this is the reason there are location-based FPS drops all around the world. Asobo should add a switch to disable the online-mesh functionality but keep Bing Maps online because 60GB of MSFS installation is offline-mesh of the whole world anyway. Still, they are unable to reproduce this FPS drop issue with their quality assurance team. More and more MSFS users are suffering these stutters making MSFS unflyable.
After performance drop issues with several official updates during 2021, the community around the Microsoft Flight Simulator started to hunt down for all kinds of tweaks to enhance the flying experience. The official known issues section is good to check out frequently for new updates. If you find any performance drops or problems during your flying, please report them to the developers. If you are experiencing slow download speed while downloading the MSFS or its big update files such as Sim Update and World Update, do the following. A loop issue during in-sim downloads can be fixed by force quitting the MSFS installer. The download will resume where left off after relaunching the sim. Before starting to update, make sure the in-game option Bandwidth is set to UNLIMITED under the GENERAL OPTIONS – DATA settings, then close MSFS and do the following.
- In the Windows search bar, type “Delivery Optimisation”.
- Select “Delivery Optimisation advanced settings”.
- Set both Percentage of measured bandwidth limiters to 100%.
- In the Windows search bar, type “Command Prompt”.
- In the menu select “Run as administrator”.
- Type: netsh int tcp set global autotuninglevel=normal
- Press Enter, you should receive an “OK.” message.
- Reboot your computer for this change to take effect.
Here are gathered some of the performance boost tricks I’ve tested, and I think you could also try and see if it helps to gain a bit smoother performance and fewer problems at your own risk. If you realize that no change happens to your performance, always change the settings you made back to default ones. I’m using all the tricks introduced below with everything as described on the Best Graphics Settings Guide as well, and I’m really happy with the overall performance of the MSFS.
- Apply the download speed tricks above this page as it might help performance too.
- Disable both Game Mode and Hardware-Accelerated GPU Scheduling as instructed.
- Enable more Virtual Memory with CPU Scheduling set to Background Services.
- Disable both Hardware Virtualization and HyperThreading as instructed.
- Avoid any CPU/GPU overclocking, can cause random crash-to-desktop issues.
- Use only the built-in Windows Defender for antivirus protection.
- In NVIDIA Control Panel, for MSFS, set Max Frame Rate to 35 FPS.
- In NVIDIA Control Panel, for MSFS, set Power Management to Maximum Performance.
- In NVIDIA Control Panel, for MSFS, set Threaded Optimisation to OFF.
- In NVIDIA Control Panel, for MSFS, set Vertical Sync to ON.
- Select proper sound devices at in-sim SOUND settings instead of System’s default device.
- Disable all the unneeded in-sim Toolbar icons by unticking them via the gear wheel icon.
- Disable Photogrammetry if experiencing heavy stutters on the ground and in the air.
- After every Sim Update, re-create a different size of Rolling Cache to overwrite the old file.