P3 Profiler states Appointments+ is running slow

Hi,

I've got P3 Profiler running on my site and it states that Appointments+ is running very slow.

I have admin support granted if anyone can help see why. Mentioned here also

https://premium.wpmudev.org/forums/topic/appointments-is-slow-and-i-want-it-to-be-faster-how#post-838024

Many Thanks