This is the first day of the new format. Are you being a little pre-emptive with your decision not to 'hang around?' (At the risk of being presumptuous, I wouldn't want to be married to you -- at least not for the first tentative week or two... :)
I may not be a computer wiz, but I imagine the lag time problem takes more than a couple of hours to solve. They are no doubt at least beginning work (if only mentally) on it now. Enough people have complained that I believe their attention has been focused in that direction.
The WebTV/page slicing things have been a major complaint as well. And I am sure that they, too, are going to be addressed.
As for your other complaints, which are simply a matter of personal preference, rather than major inconvenience, don't you believe you can make accommodations in that regard?
You will not be 'shut out' of this forum. Your complaints are common enough that they will be addressed, given the appropriate time frame.
Patience is a virtue. Hang in there, huh?