Optimize Images: If you’re on WordPress, download an image optimization plugin like WP Smush or EWWW Image Optimizer. Both have free plugins, that can simply optimize the file size of the images on your website.
Minify JavaScript and/or CSS: This means that you can make certain files smaller, saving on load times. Again, WordPress has more free plugins that can do this for you, like Better WordPress Auto optimize or Minify.
Leverage Browser Caching: By leveraging caching, you can extremely improve load times for repeat visitors. To solve this, try a WordPress plugin like WP Rocket or W3 Total Cache.