Well... this is certainly interesting. I've done a quick trial upgrade of a backup copy of my 5.4.4 system and find that there's something wrong with 5.5

Just comparing the same page as in my first post, but not measuring load times as it's not comparable at the moment.

5.5.0 (compared with 5.4.4)
Score 70 (down 4)
31 resources (up 1)
662kb uncompressed (up heaps!)
178kb compressed

Obviously something's terribly wrong here, and it looks to me to be a 300Kb script file called "MicrosoftAjax.debug.js"

Did someone forget something when this was packaged?

Can someone else check theirs and confirm if they're seeing the same thing?
Rob

Aha got it... I see debgug=true in the compliation section. I had created this test instance yesterday to demonstrate bugs to a couple of module developers, and one of them must have enabled that when checking. Another lesson learned.

So, I re-did the test with that disabled and as expected, the result is identical to 5.4.4

I'll enable human friendly URLs later today, but that's unlikely to change the result.

Again.. the only point being made here is that some upgraders may want to spend some time tweaking things to counter the effects of the extra load.
Rob