Hello Angeline, 

Thank you for purchasing Amelia, and for reaching out to us.The slow load can be caused by a lot of things - the number of appointments you have, the number of customers, the number of employees, etc.

Other than Amelia, it could be caused by the amount of other data you have on the page. 

Can you increase the php_memory_limit on your site?  If you're not sure how to do that, you can reach out to your hosting provider. 

Please check out our demo sites (link) and see how the plugin should behave on a site with dedicated hosting and good server performance.

We wish you all the best.

Hello Angeline, 

Each of those 5000 appoinmtent has a lot of information inside such as; time, data, employee data, customer data, payment method, etc. And it is normal that when there is that amount of data, everything opens more slowly.

Maybe you can try to delete that data from Amelia or from your database if you don't need that data and that might help speed up the site.

We've had customers that used Amelia for Covid-19 vaccinations, and they worked with around 1.000 appointments per day. You do have a lot of data (services, employees, appointments, and most likely customers) combined, so if the form is not filtered (like [ameliabooking service=1] or something similar), the form loads all services and all employees. If you're connected to Google and/or Outlook Calendar, those are checked for availability as well. 

Maybe you can try increasing the timeout limit as well. Also, have you tried enabling the "Load Entities on page load" slider in Amelia Settings/Activation? That should avoid AJAX calls for fetching entities (services, employees, locations, packages, tags) and should increase the performance.