To upgrade, or not to upgrade, that is the question

It will be dependent on your streamer and associated system. It would be useful to know / see your system. There is a place for photos / identified your components under your user ID. Then you don’t have to keep entering the same info. As it is essential for most questions and answers.

I would install and inexpensive wall wart wifi extender next to your system with a decent Ethernet cable (DHLabs would be my recommendation). See how that sounds… may be no difference. My experience has been the sound quality is largely the result of your streamer.

I have two great systems, each running on wall wart extenders. I know of many $150K systems that do.

Some folks have used budget streamers and fiddled / invested in there network and connections. I think either way can get you there. I prefer a single box and no fiddling with the network. My systems run seamlessly through my wifi.

+1 @ghdprentice any decent Ethernet cable is gonna cost $$$ for 70’, so I’d get something like a good TP Link extender and the DH Labs cable is likely a solid choice as well.  Also, I was recently made aware of these Ethernet filters that seem to provide meaningful benefits and at only $50 may well be worth a try while you’re at it.  Best of luck. 
https://www.dxengineering.com/parts/dxe-iso-plus-2

A mesh router with a ViaBlue to a nearby node from it.

fuzztone +1