isn't there such a subscription view where I have subscribed threads
(because I replied) on top that I haven't read and the forums I
subscribed below ? Please, that was the view I was always working with.

And another question please ... if you click on the "Forum" link in the
second navigation bar where "Latest", "What's New" ... is.
How long does it take to load the page ?

Here about 8 seconds.