IMHO, an SR Omega ethernet will always improve performance since its the best ethernet cable in existence IMHO right now.
What I did and many others was to isolate it from your core router/switch by using SFP connection.
I also use HRS DPX on top of Eichmann Toppers their function is to dissipate heat from the ER. With the Toppers I can also use a single HRS Nimbus 1inch footer below the ER. But only if you take care of the heat with sinks on top of it IMHO.
Sigma CGC ground cable is connected to a Denali 6000T CGS terminal.