Media Streaming in iOS - Latency and Delays

Hi,

We are a company that deal with real time transaction, thus we need to real time streaming protocol on mobile.

Upon tested with Adobe Media Server Family, we found out that Media Streaming via Apple HLS protocol is having at least 10 seconds of latency.

On slow network it takes up to 15 or 20 seconds of latency.

It is not acceptable as 10 seconds do mean a lot to a company that deal with real time transaction, we would like it to be really close to 0 second.

We would like to know the followings:-

a) How to speed up the latency for apple HLS to maybe 2-4 seconds?

b) If we are taking RTMP as alternative, is there any recommended playback framework that is supported on iOS?

c) Would there be an issue with the QA for iOS if we opt for RTMP?

Thanks.