It can be slow, though… It must be related to the archive servers, however, since it doesn’t fetch install packages from Microsoft. Also, it’s the usual install process afterwards; and some softwares take a really long time to install.
I don’t know how it compares with Chocolatey. I’ve never used it.
See which packages Windows can upgrade on its own:
Upgrade everything:
You might want to add the flag --include-unknown to handle packages for which Windows can’t determine the latest version.