Audio Quality

What should I expect for audio output quality . I am running the current 2021 version. I have a new Lenovo Lap top med level. I connect the laptop to Stereo with sub via headphone jack. When I play an mp3 things sound great . So my system is set correctly

When I play Biab , I find audio quality to be very compressed and muffled . Particularly in the low end.

Is this what I should expect or is there settings that may help ?

Thanks