Please contact us if you need any further help improving your page speed or optimizing your WordPress site. It’s a good idea to reduce the number of additional information requests that your server makes. For example, post revisions can take up a large portion of the disk space that is not needed. Oversized images are the most common cause of slow WordPress sites.
Redirects have a few uses, but unnecessary redirects, such as 301 redirects and redirect chains, can really slow things down.
Why is WordPress speed optimization important
How do I speed up the optimization of WordPress without a plugin?
This is important because if you have an image that renders 500×500 pixels but the actual intrinsic size of the image is 4000×4000, there is a big image optimization opportunity to bring the intrinsic size of the image close to the display size. If you have an older WordPress site with lots of pages and posts, it might be time to do a quick cleanup and delete those old versions. This is an optimization technique that loads visible content but delays the downloading and rendering of content that appears below the crease. If a site doesn’t have enough PHP workers, sometimes a request comes in, WordPress spawns the cron, but the cron has to wait for the worker and therefore just sits there.