Bluetooth and general audio quality in SFOS

Has anyone tried to change the settings for Bluetooth audio in SFOS. And if yes what was the result (in terms of quality and battery consumption). I am/was not expecting bluetooth to be excellent but it doesn’t sound good.

Also has anyone played with the settings of pulseaudio. From what i can see in the config files they seems to be on the conservative side.

I have been using various BT headsets on SFOS for years and no real complaints, though when a headset gets stuck in the wrong mode repairing seemed to be the only option.