Network Switches

I've heard that prior to using LPS and power conditioner on every single network piece. I'm also thinking perhaps the signature thing was less noticeable in past since streaming solution not as mature, advanced as now. Past upgrades improved noise floor, resolution to such an extent, all my attention went there, not so much on sound signature.
This haze or less natural sound is a subtle thing, but still exposed on present extremely high resolution system. I know theoretically, network equipment shouldn't change sound signature, yet most of us have experienced theoreticals being broken.
I do know a lot of these audiophile switches use generic switch circuit boards with upgrades parts and LPS added. Perhaps I'm hearing generic board liabilities. In any case, it will take a few more listening sessions to get to the bottom of this.
I already know about placebo effect, expectation bias,  and how to adjust, this not the deal here.

If I continue to hear deficiency of new switch, along with it's improvements, the question becomes. What would a much more expensive switch like the Innuos bring to the party? Is lower noise floor sole improvement, or are you paying that extra money for something more, meaning more natural sound vs. lower cost switches. Assuming Innuos is superior in any parameter?

Which network switch do you have now ? @sns

RenoLabs Ultimate Switch, built in LPS, OXCO clock.

Not familiar with that Switch. 
To answer your question, ideally you would want to try another, more expensive Switch, with no-risk return policy.