As far as loading times, MSFS20 in my use case; tons of add-ons, not using the add-on linker mod, takes more than 20 minutes to open, and another couple of
minutes at least to get into the cockpit (almost always into a PMDG/Fenix/INI jetliner) MSFS 2024 is maybe 5 minutes.
My game works just fine at about 80mbs bandwidth while watching a youtube video on another screen.