A few of you have mentioned that the pulldown has a lag - there IS a reason for this.
You probably like the on-the-fly color changes for the pulldown - well, that is the cause. To do it on the fly, it must (at each pulldown) reset the colors of anything that is in there. The more info in the pulldown, the slower it will seem.
I will try to improve the performance of this when I get time ... but at least you know the reason