There are several ways to speed up a WordPress website, some of which are:
1) Use a caching plugin: Caching plugins like WP Fastest Cache or WP Super Cache can significantly improve the speed of your website by storing a copy of frequently accessed pages in memory, reducing the number of database queries needed to render the page.
2) Optimize images: Images can be a major contributor to slow loading times. To optimize your images, use a compression tool like TinyPNG to reduce their size without sacrificing quality. Additionally, consider lazy loading images so that they only load when they come into view.
3) Minimize HTTP requests: Every time your website loads, it sends requests to the server for various assets like images, CSS files, and JavaScript files. Minimizing these requests can help speed up your site. This can be done by minimizing the number of plugins used, combining multiple CSS and JavaScript files into one, and using a content delivery network (CDN) to serve static assets.
4) Choose a good hosting provider: The performance of your website depends largely on the quality of your hosting provider. Look for a hosting provider that uses solid-state drives (SSDs) instead of traditional hard drives and has a good reputation for uptime and speed.
5) Use a lightweight theme: A lightweight theme can reduce the number of HTTP requests and code needed to render your website, which can lead to faster loading times. Consider using a theme like Astra or GeneratePress that is specifically designed for speed.
6) Remove unnecessary plugins: Every plugin you install on your website can add to its loading time, so it's important to only use the plugins you absolutely need. Regularly review your installed plugins and remove any that are not necessary.
7) Enable Gzip compression: Gzip compression can significantly reduce the size of your website's files before they are sent to the browser, which can improve loading times. Many hosting providers have Gzip compression enabled by default, but if not, you can enable it through a plugin like WP Performance Score Booster.