You can’t “clean up” a bad network switch. Bad network equipment causes packet loss, jitter, and other bad things.
think of it as have a super clean and transparent window, and shine light light through it, the light looks exactly like intended. But if you but a dirty old window between the source and the clean window, the clean window can’t do anything at all to “clean up” the source.
that said, the transfer protocols at the layers above take care of quality, with a crappy network switch like d link, you may experience enough issues that it could potentially impact sound quality, and there is nothing you can add to fix this. Now, “audiophile” switches are typically not better from my research, you really need an enterprise switch, from juniper, extreme networks, or arista for example.