As I said, apart from video and photo optimized themes, you can also get a number of plugins that will make your site more functional. The good news is that we're only going to focus on free plugins:
- WP Smush (https://wordpress.org/plugins/wp-smushit/): This plugin doesn't present any particular output on the frontend of your site because what it actually does is automatically optimize your images in the background. This is a great plugin for saving your bandwidth, especially if you're publishing a lot of images. The installation process is quite standard. Once the plugin is activated, it starts working in the background with no supervision required.
- Lightbox (https://wordpress.org/plugins/lightbox/ ...