The online system in VF:US is unfortunately (and predictably) an absolute joke. Filtering by connection quality does not work: even connections that display as 4-bar drop down to 2 or 1 bars once you enter any lobbies, even in ranked. Since RGG studio used the same delay-based netcode as AM2 for the original release of VF5 (and FS), this means 95% of matches are completely unplayable.
I mean, you can't even directly invite friends that are physically close to your own lobbies to ensure decent games. It's pathetic.
On the one hand, as a lifelong VF fan I'm happy this got released, but this sort of shitty online routine, especially if it isn't fixed asap (and I doubt it will), will do more harm than good, especially since so many new people are being exposed to the game now. SEGA are masters at squandering opportunities and this will directly impact their ability to properly develop a VF6 (which I had already written off a decade ago, but it's obviously in the cards now).