I think you can bring the time to initial interactive experience way down by using Polymer CLI. Looking at wedding-app.html it looks like it's loading a lot of

I think you can bring the time to initial interactive experience way down by using Polymer CLI. Looking at wedding-app.html it looks like it's loading a lot of elements which aren't on screen yet. Take a look at the app-drawer-template example and note the line that lazy loads element definitions when pages change: https://github.com/Polymer/app-drawer-template/blob/master/src/my-app.html#L130-L134 https://github.com/Polymer/app-drawer-template/blob/master/s... If you use the CLI you can create a polymer.json file that lets you fragment up your site: https://github.com/Polymer/app-drawer-template/blob/master/polymer.json https://github.com/Polymer/app-drawer-template/blob/master/p... This way you'll create separate vulcanized bundles and you can lazy load them right when the user clicks on the section, hopefully improving that first load experience. Ignore the haters on HN. Congrats on the wedding!!!