QueryNamedPropertyHistory fetches new data every 6-10 secs instead of 1 second

Hello.

Am trying to understand why QueryNamedPropertyHistory service brings new data every 6-10 instead of 1 second but I still can't succeed.

So here is my architecture:

1) a thing client (stand alone java program) sends data to thingworx every second;

2) remote thing receives the data and I see that new data come here every second as well;

3) the data from the remote thing goes next to separate things;

4) next, a thing template brings the data via QueryNamedPropertyHistory service;

5) new data in a mashup is seen here every 6-10 unfortunately at the final step. 

Could anyone tell me what I do wrong? How to achieve the desired result -)

Thank you.