That’s totally fine, anyway some explanation on the suggestions:
- The NDU service (related to the Windows Network Data Usage Monitoring Driver) is used by Windows 10 and 11 for monitoring the data usage on metered connections. If your connection to the world is not limited by your ISP you won’t need it - anyway the suggestion is not to remove it but to disable its automatic start. It can be reactivated anytime by changing the value related back to “2”. Likely the sheer amount of data and connections MSFS needs to perform leads this service to cause trouble.
- Rolling cache in sim - this is basically only useful on really slow connections. If you got 10Mbit/s or more it’s not needed at all. Rolling cache stores tiles and photogrammetry data for one place on your drive until it gets refreshed after months which can cause issues if something changes on the servers side (it’s only affecting the sim itself and it’s a setting within MSFS).
- mapscache is also completely related to the sim itself and it does what it says: caching data for the tiles to get displayed on your screen - after these have been displayed this data is not used anymore. Anyway over some sim updates it seems that this cache has been corrupted, deleting it once brought back some speed as the cache was created from scratch.
- The Windows 11 .NET issue is documented by Microsoft and reinstalling it is suggested as a workaround.
After installing this update, some .NET Framework 3.5 apps might have issues or might fail to open. Affected apps are using certain optional components in .NET Framework 3.5, such as Windows Communication Foundation (WCF) and Windows Workflow (WWF) components.
Source: May 10, 2022—KB5013943 (OS Build 22000.675) - Microsoft Support
This issue makes some applications fail to load completely on the drivers end and can also cause issues on other applications which partly use the .NET framework. I don’t know the internals of MSFS in detail but I guess some parts rely on .NET - so it won’t harm to do the steps suggested: