Take the following steps to track the executed queries and plugins that slow the site, using the Query Monitor plugin:
- Log in to the Dashboard as an administrator.
- Visit any post/page or URL on the site.
- Click the menu item in the top menu that shows dynamic data in the format 0.59s 6774kB 0.0350s 31Q. You will get a screen similar to one shown in the following screenshot:
- Click the Queries tab on the left to see the database queries executed for the loaded page.
- Use the Component filter column to filter the queries based on the component, such as WordPress core, plugin, or theme.