There are many tools for minifying content. You can use many plugins for Wordpress, and the aforementioned W3 Total Cache can do it. In the settings, you can choose which types of files you want to minify. You can choose javascript, html and css files. I recommend not enabling all 3 options at once, but gradually. Always enable one, check the website for any errors during loading, and then enable minification of the next file type. Sometimes there is a situation where some files (especially scripts) do not tolerate minification very well.
► If any of the files does not work uk email data properly after minification, it can be excluded from minification in the plugin's detailed settings.
There are other minification options, for example, you can download a minified version of your files directly from PageSpeed Insights, but although this tool also minifies images, it has several disadvantages, most notably that you will have to minify all files again every time you make a change to your website, while Wordpress plugins will handle this automatically.
WordPress CMS Optimization
Removing unused plugins
After trying out different types of plugins, you may find that you have a lot of plugins and templates installed in WordPress that you don't use. It's best to deactivate and then delete these unused plugins. This will not only increase the speed of your site, as it won't be slowed down by loading unnecessary plugins, but it will also reduce the risk of your site being attacked by malware or hackers.