Site search is a very important feature that helps your visitor find the content they are in need of. Whether your site is for blogging, eCommerce, or any informational website allowing users to search the database, it will help to improve the usability. If you have a good site search then it helps you to reduce your dependency on Google which will directly increase the time spent on your site. Though you are in the initial phase of setting your website, to improve the WordPress site search is a good idea as it will be very helpful in future too.
As in the older version of WordPress, search result was sorted by date where many people find it a little bit annoying for the website for lots of posts. Hence, WordPress has introduced a new version which will change the way of search results are sorted.