Advice on Improving a Wifi-Mesh -> Ethernet Setup?

My streamer connects to an ethernet port of a Netgear Orbi satellite. It's a modified Allo Digione Signature mounted on a USBridge Signature, both powered by an Allo Shanti LPS.

The Orbi is a stock unit powered by a Teradak LPS. I've noticed a significant jump using John Swenson's technique to "ground" the stock SMPS. The LPS provided further improvements but were not as dramatic as introducing the grounding adapter.

If I intend to take things one step forward, which would make the most sense in my system? 

1. An "audiophile" switch that supposedly reclocks and improves the signal.

2. Some type of filter or isolation to reduce noise (Gigafoil, ENO, FMC, etc.).

3. Modifying/Replacing the Orbi.

Thanks in advance!