I have not responded to you yet because it seems to me that you make a lot of strong but unsubstantiated statements.
- SD storage is plenty fast if you don’t buy cheap equipment.
- Matrix is much more than you think it is. Starting point: Comparison
- Calls have been demonstrated to work months ago in several progress updates. First time, more than a year ago.
The current videos start with simple things and most likely will get to that stuff, too. And quite possibly to other stuff you are missing.
I’d suggest you do some reading / watching and wait a few more days for the upcoming videos and announcements. This could save us all from some kilometers of needless arguing 
Here’s a comprehensive list of stuff that happened:
Librem 5 — Development Chronology