delay occurs when draging window to move

[silentyears]

here is my question, i create so many windows which belong to three categorys on one common parent window , windows of each category show at a time while the others is invisible. when i drag the parent window to move, there's delay, but when i delete the code which create the invisible parts, only let one visible category left , there's no delay. then i check out the windows property “visible” （value is false）and “updatemode” （value is visible）, so i think invisible parts are ignored when rendering as help files say . so why?
is there any possibility that delay occurs when draging one window full of too many controls?
thanks！ and cegui version is 0.7.9

[Kulik]

You have 31 posts and I have seen no CEGUI logs from you. I have warned you numerous times that we can't tolerate that. We can see your rendering system, XML parser and other critical info from the log. Don't assume that you know it all and know for sure that there is nothing in the log that we could use, you are very likely to be wrong.

I am sorry but I have to ban you. We simply can't ask for logs every time. You are the first person to be banned that isn't outright insulting us and/or spamming.