I found that when I am listening the music via the bluetooth headphone, the 2.4G wifi connection is unstable and slow. It resume to normal when I disconnect the bluetooth headphone or using 5G wifi instead of 2.4G.
Well, bluetooth does operate on 2,4GHz as well, so in theory it can interfere with the WiFi signals. Normally this isn't an issue but if you experience an issue it might be a lot of signal interference, possibly from other sources as well.
