Hello, @Kiki,
We suggest that you remove/delete any themes, plugins, pages, posts, products, content, or media that are not being used on your site, as this will also have a positive impact on your site’s speed.
For more information on how to speed up your website, please refer to our theme documentation here: https://www.8theme.com/documentation/xstore/troubleshooting/how-to-speed-up-my-website/ and https://www.8theme.com/documentation/xstore/troubleshooting/how-to-improve-wp-rocket-settings-with-xstore/.
We hope this information is helpful.
Best regards,
8Themes Team