I don't have access to wired internet where I am. I have a 5G household wifi hotspot at ~100 Mbps, and it has actually worked great for a lot of other games. I play Hardspace: Shipbreaker and Everspace 2 on it without issue. I'm not really sure what the specifics are, but I've had issues every time I've played Starfield. I went from Everspace 2 without issues to Starfield playing like a Vaseline smeared slideshow and right back to Everspace 2 with no issues, so I suspect it may be related to something about this specific game, or massive coincidence. I get occasional hiccups in other games, rarely. Starfield has been pervasive lag issues without fail.