Well, I don't know what to test now. I have the same delays in IE8 and also the https mixed question, and once I answer "yes" to the https security question, the page continues to load (still slow) and then the question I presented in the first post shows up.
Moreover, if I answer "yes" to stop loading the script, the question appears again, while the browser gets unresponsive. Waiting enough time it gets responsive again, but the question also appears again. So, it's unusable in practice.
If I answer "no" to the script question, then the question doesn't pop up again and the page continues to load, still slowly and it can even get unresponsive for a moment.
The bottom line is that I don't know what triggers it in my system and why it gets unresponsive. Sure, having enough patience it will finally load and it gets to some "normal" usable state, but why
Which script is there so important to load a simple blog