At the moment it takes from 1 to 3 minutes for the message to be sent.
I have tier 3 but I find myself not using this tool because of the delay.

If I want to send 2 messages one after the other, one message will be sent after 1 minute and the other after 2-3 minutes, and it's not good for me.

Is there any plan to allow instant messaging so you can make a request to the API and it be sent instantly or the idea is to keep things as they are and there always be delay?