Bandwidth being taken up by game

Got this game a few months ago, everything was going great until around 2 or 3 updates ago. My wifi has been recently taken some insane usage in the past 2 weeks and I figured out that it was because of this game. Whenever I’m in a server none of my family members can use the wifi. I just figured out that it wasn’t my VR Headset or my PC it was the game. I was running a bandwidth tester when I ran the game and it went way down, 13 kB/s! Please help me with this because I really want to play this game without my wifi being doodoo.