Can I reduce load time by disabling rotating header?

I'm trying to reduce the loading time on the website I'm building (http://theagnonschool.org).

To that end, the client decided to reduce the number of rotating image galleries on the homepage, deciding to keep the gallery in the body of the page and eliminate the rotating header.

To eliminate the rotating header, I simply removed all but one header in the /images/header/ folder.

But now I'm wondering:
-is there a way to disable the rotating header?
-and if there is, would disabling it do anything to improve my loading time?

Thanks,
Lila