I asked this over on the WordPress Plugin repo's support forum too. Is there anyway to troubleshoot the load time after a user submits an appointment? It is taking 10+ seconds before seeing “Done” or the redirect to our confirmation page begins. Nothing is being logged in the site’s main error log. Nothing is listed in the error log specific to this plugin. Although, I couldn’t find that log file anywhere. Maybe errors are kept in the database? Anyone experiencing the same?