Does it make any difference whether you are logged in or not?
No; I did think of that and experimented. There was no noticeable difference.
By the way, does anyone know how to kill advertising in Chrome?
(I gave up on Firefox a long time ago.)
I suspect that the issue I'm having is not the result of advertising; in th past i recall a lot of delay but here was a message saying "waiting for..." with an advertising URL. I'm not seeing that.
I closed down the browser after my previous post and then tried to log back in to Pprune; it took 6 attempts just to get to the Home page URL.
I've downloaded Adblock and discovered that it is a Chrome add-on....
So it's installed, I even paid USD20.
Let's see if it makes a difference.