Isn't the "Gaming" setting doing exactly that (giving you "whatever is coming in through the HDMI port")?
What you describe about it being hard to hear dialog is exactly what I'd expect from someone who has their TV turned down as a result of using the score/soundtrack and loud sound effects as a reference point, which consequently is too low a volume to hear the dialog.
I wouldn't be surprised if you're actually experiencing what your TV's processing turned off is like and sound balancing is actually what you (as in you, personally) _want_ it to be doing.
What you describe about it being hard to hear dialog is exactly what I'd expect from someone who has their TV turned down as a result of using the score/soundtrack and loud sound effects as a reference point, which consequently is too low a volume to hear the dialog.
I wouldn't be surprised if you're actually experiencing what your TV's processing turned off is like and sound balancing is actually what you (as in you, personally) _want_ it to be doing.