Hello,
First of all, thank you for your purchase.
1. Can you send me, please, temporary admin login credentials to your WordPress install, so I can check this issue out? Send it, please, to my email address: kisded@yahoo.com
Also, please let me know how can I reproduce this issue on your site, so I can check on this.
2. If you are looking for the best speed of responses from the API, I recommend you check the Azure integration of the plugin, as currently this is the one which provides best response speeds. I am working also on AiomaticAPI, to improve its response speed, but currently, Azure is better. Please check integration tutorial here: https://www.youtube.com/watch?v=56ZHp2B4qgY
Regards, Szabi – CodeRevolution.