Optimizing a site can be a full-time job. There are plenty of WordPress developers who do this for 40 hours a week, and if you really want to optimize your site you can get a 100% score on GTMetrix.
But if you only want to spend an hour or two optimizing your site, you can still make huge gains and improvements. If you followed all of the advice in this chapter, you should have seen a pretty big speed improvement through GTMetrix.
In this chapter, you have learned how to monitor performance with GTMetrix, minify static files such as CSS and JavaScript, optimize images, cache certain parts of your site, and optimize content above the fold by lazy-loading images.
In the next chapter, we're going to configure our theme.
