Where is the slowness you have? The pics loading, or the hover reacting? I don't have any.. except when previewing the hovered sites and waiting for them to load.
the feedback is really appreciated.
Some of the slowness seems to be the initial loading, because the responsiveness improves after the first visit. Since the background images seem to mostly be eye-candy, you might want to think about removing them. They also make your first visit to the site more confusing (in my opinion).
I also see some slowness in the hover and zooming, and that seems to stick around so I don't think it is a loading issue. You might want to reconsider the amount of animation that is done by the hovering; I already know where my mouse is, and some of the actions seem to simply highlight that.
I hope this helps, and thanks for putting your stuff up for us to play with.
Using hover instead of click doesn't save me time, it wastes more of it.
btw, sorry to hijack this thread.