As the other commenter said, he needs to hook up to the ethernet jack in his room. The Wifi generally sucks in dorms, too crowded.

There's no Ethernet Jack? I was going to suggest an expensive extender but the latency is odd. It indicates packet loss. Where's the nearest AP? If he could do a test there it would rule out what hard wire it's connected to.

eSports at anything above "having a giggle" and WiFi network connectivity are mutually exclusive things.

Having any latency at all makes your lad about as much use as a one legged bloke in an arse kicking competition. He and his team should be on hardwired gigabit fibre, and that he isn't should be seen as embarrassing for his institution.

For what it's worth, I'm a simple home user (in the UK) and I have a gigabit fibre to the transceiver in the cellar, to a basic gigabit switch which routes to patch boxes in every room of my 150 year old house. That I can do that affordably and a supposedly professionally run institution can't handle such is profoundly humiliating.

Perhaps try putting it like that to the powers that be and see how they react? 💛