The ps audio provides superior output interfaces like i2s which Aurender doesn’t. As for the Aurender software, it’s terrible compared to Lightning DS, Lumin, audirvana, and of course Roon. And I would bet 99% of all Aurender users use usb output which is also a terrible interface. This is why the better dacs and streamers don’t even provide an usb interface.
Give Audirvana a try. They are improving on their gui in each release and the sound quality surpasses Aurender and other 3rd party software for sound quality, even a little bit better than Roon. Many years ago I used upnp and minimserver so my Auralic Aries Lightning DS software would interface with all my ripped/purchased music.