I’m not familiar with the Hermes as I don’t own one but in quickly scanning the specs there is mention of using “Volumino” as an alternative to allow the use of Qobuz. Maybe this will allow you to stream Qobuz via the Hermes w/o having to deal with Roon? I don’t use Roon but I’ve read posts from others stating that it does have its own issues sonic signature.
BTW- Your 110 Ohm cable will be better than using a typical balanced cable and shouldn’t take light years to show the result.