I'm using Netgear Orbi AC3000, so the network seems pretty fast. The only pages that take more than 1 second to lead are Music pages where I load 8 or 9 overlays because I was having an issue trying to get variables to populate on the screen and then have them being used to run specific macros depending on which room I'm controlling. So instead, I load an overlay for each room that is controlled by my multi-room amp, and then that overlay has the commands hard coded into it and I just make the specific overlay visible when I need to turn on/off & volume control the room. Maybe I should "load" the overlay when it is needed instead of when the scene is initially loaded? instead of making it visible/hidden etc.
As I'm typing this, I upgraded to 11.4, maybe a little faster than 11.3.1, but I still get a good 1-2 second delay.
If I close the Webpage, the event log shows disconnected, then when I re-open the page, I get the ADD connected, and so sometimes it takes a bit for the ADD Connected to occur too, but I guess not much can be done about that?