Cloudflare is a popular solution for a CDN (content-delivery network).
You might want to know that you can have a free WordPress plugin to help you power up your website.
Do note that this change, once done, might make your website a bit more complicated to manage.
Due to this reason, I didn’t install Cloudflare on any of the websites I manage.
A plugin like Imagify for WebP images and LiteSpeed Cache for powerful caching are great solutions to improve a website’s speed.
Also, choosing a fast WordPress theme.