Yes. Don't use flash or heavy graphics on your main page. Avoid HTML generators and code your own HTML, if you can. Everyone doesn't want to bother with the HTML, but you can always save your graphics and multi-media for sub-pages.
If your site is a catalog or shopping cart site, you definitely don't want visitors leaving before they can see your main page. Once they have your main page and index loaded, perhaps more than 0% will follow your links to the pages with the stuff for sale or the stuff requiring the graphics.
Naw, my page is just going to be simple stuff nothing commercial.