When I open the now playing page, before the album image is populated the text appears in the middle of the screen and then bumps down once the image loads. Having a placeholder transparent image (or better probably a div or whatever the current equivalent is) would keep the text from moving around. There are a few other places where this div behavior on images would make for a smoother page loading experience, which I guess I notice a lot because the iOS apps reestablish connections with core every time they regain focus.
My clients normally load so fast, the first time I saw a waiting Roon jellyfish, I thought it was a new feature. 