Might be all the images and moving pictures? =P If your internets is a little slow or computer a little old! Did you manage to see any Pokés at all or is it plainly because you cannot view the page? :(
Hey do you mind if I use a fake GTS to clone? I usually use an AR, but my DS is very sensitive and with the AR it tends to freeze. The problem with GTS cloning is that it adds a ribbon, some people not most don't really like that.