Insane levels of packet loss and other connectivity issues despite low ping

I play on Xbox series S and every time I try to play rocket league I get a Christmas tree of red flashing lights. Super bad packet loss and rubber banding to the point when I left my match rocket league displayed a message that I had abnormally high latency. I’ve tried running all sorts of network tests, manually changed my DNS, restarted my Xbox, completely power cycled my Xbox, toggled on WMM tagging and nothing has made any difference. It’s just so weird to me since my ping is displaying numbers so low I’ve never seen them before but it feels like I’m at 350 ping the whole time. I have no idea what to do and I feel like I’m out of options. This is on a university wifi system as well so I cant fiddle with the router or use Ethernet.

Edit: should also say that other devices work fine for streaming or browsing the web with no issues.