Improving Wifi while full time Youtuber is living with me? - eviltoast

Hey everyone, first post here and a bit short but I had a question for you all;

For context, my roommate is a full time Youtuber so whenever I’m gaming or talking with friends over Discord, etc the connection is really comically bad when they’re recording and uploading.

I was wondering if anyone had any advice or a solution for this, if any.

Thank you in advance