I loaded the “wedding” demo content, and I think there is a setting I cannot find that is delaying the loading of the navbar and text on pages. Icons and page section backgrounds seem to load instantly, and the revolution slider on the homepage is loading correctly.
Are you using any plugin for animation or something? You could try testing for a plugin conflict. You can do this by deactivating all third party plugins, and seeing if the problem remains. If it’s fixed, you’ll know a plugin caused the problem, and you can narrow down which one by reactivating them one at a time.