Did you attach the aerial to the Motherboard? is it in a good spot? I hardly ever use mine and yet headphones I use seem to track ok. I have noticed with my headset I can still be attached to my BT at home even if I am outside and across the road
i have to mount mine on back of case as glass isn't magnetic
my connection sounds same as yours
I have a Aorus X570 Elite WIFI
card and onboard both have same drivers.
I don't know if you can get away with just disabling BT on the PC and leave the wifi active, you might need to disable both just to use the adapter
https://mindmedia.freshdesk.com/sup...uetooth-dongle-and-disable-internal-bluetooth
https://www.dummies.com/computers/pcs/how-to-disable-the-original-wifi-adapter/ (link used as they do clear instructions)