If you want to increase your WordPress website's performance, you can do a few things. Here are a few tips to help you improve the performance of your WordPress website:
Make sure that you are using the right themes and plugins. A poorly designed or outdated theme can slow down your website significantly. It is best to stick with popular, well-designed themes that are updated frequently.
Optimize your code and database queries. Optimizing your code can reduce the number of requests your website makes to the server. You can also improve performance by caching data in the database.
Use caching plugins and hosting plans that provide good performance. Caching plugins can speed up page loading by storing copies of data in a local disk cache on your computer. Good hosting plans will often include features such as built-in caching mechanisms.
Keep your website defragmented. Defragmenting your hard drive will help to increase the speed of your computer.
Use application caches. This can help to speed up page load times by storing copies of already-loaded files on the user's computer. Like in caching plugins, good hosting plans often include built-in application caches, which will help you increase performance.