New App?

[streamy]

 If you had Reactors you would know about the bugs and missing features compared to the Golds.

I also think it's not the dialog that is the problem, but more the SW limitations (mainly on the user experience side) of Spark. Roon provides a good alternative, at least to me.
But in terms of pure streaming performance Spark currently is still ahead in performance (compared to Roon), i.e. how fast Qobuz queries are answered and how fast streaming starts, as well as in terms of access to purchased files etc.
In case you use the PLC between Dialog and the Phantoms it very much reliefs your home network from the streaming load, specifically when using wifi.
All this said when the PLC works without disturbance from neighboring PLCs and that all your plugs are on the same physical power line.