I was about to say the speed was find for me, but perhaps I'm a bit closer to the content to begin with.
The addition was a bit odd at first. When I got back to my computer certain links were missing, the reply windows were gone, and logging in took me to a login page instead of that overlay. I figured I'd log-out and on, but could not log out. Then I cleared my cache & such, and closed the browser. No difference when I got back on.
Then I found NoScript showed a new blockable item for APUG - netdna-cdn.com.
All is fine now, but it was a bit funny working this out.
Actually, when the site first came back online, I had a bit of a cry about the lack of a dedicated mobile skin because I kept inadvertantly hitting "Mark All Read" instead of "New" or "Today's Posts"
I've been doing that on the non-mobile version - I think it's because the link order is different than it used to be.