20% Packet Loss

A few weeks ago, the WiFi card on my XB8 failed so I exchanged it for a new one at my local Xfinity store. Now, when I am gaming on my PS5, I am getting consistent packet loss/late packets, especially if one or more devices are streaming. This was never a problem with my old gateway. Using a packet loss tool, my packet loss during these times is between 5%-20% which is insane. The only thing that I see on my account is the streaming device, an Xfinity phone, is on 'PowerBoost' and is taking priority over other devices.

I have a 1gb plan. My PS5 is on a wired connection, as was my computer when doing speed tests. The streaming devices are usually using the WiFi.