It's interesting that you recommend Microsoft Edge, since it doesn't even take my dictation directly now, but needs to use the dictation box, even though I have the Dragon extension installed. I realize that could just be a matter of my not configuring it.
But my memory is that even when I had made the magic 28 changes, Edge was still a pain to use with Dragon.
From the little bit of research I just did, it seems that Edge might be faster and seems to use appreciably less RAM. But it wasn't obvious in terms of features which was better.
I will contact you directly for the White Glove service