I've been here, quietly, for almost 10 years and have seen many incarnations of the site. Yes, it did run a lot smoother way back when but that was before there was so much content available. WinCustomize was at the forefront of the whole "skinning" boom. There were only a handful of apps and only a few categories to choose from on the site. Now there are more apps and more categories, forums, personal sites for each member and a store to purchase all the great stuff. There's A LOT more content now than there was back then! A site of this magnitude is going to experience problems now and then.
I agree the site has been slow as of late but there is a beta site in the works. It's not like the powers that be don't care...they're actually working on a new and improved site for all of us. We just have to be patient and have faith that the new WinCustomize will be well worth the wait!
I, for one, will still visit everyday regardless of the shortcomings of the site