Geekcreit Uno & EmonTX-Shield

Did anybody try Geekcreit “Arduino Uno” with EmonTX Shield?

Geekcreit Uno is a cheap chinese Arduino Uno.

I did use it this week. When I did use Arduino Uno (original), information is received every 4 seconds, but with Geekcreit Uno the same information is many times missed in Emonhub, and usually it takes 40 seconds. I understood that this is a Geekcreit problem.