Quality drops severely while Discord is open

[WinterSSB]

Plan

Premium

Country

USA

Device

Iphone 7

Operating System

iOS

My Question or Issue

I'm listening to music through wireless headphones.
Whenever I open the Discord app, the quality drops as if the music is being played through a phone call. The issue is resolved when Discord is closed. I am not in any voice calls.
I don't understand what is causing this issue.