Looking for a set if anyone can help

I accept of course the reduced fuel efficiency around town but not early teens,I'm not familiar with all the settings yet but is there a reset for this?

Varying between 10 and 20 mpg around town, can anyone help,is there a reset or driving mode I don't know about,surely these aren't accurate readings?

Sorry I gave the wrong description of the issue, what I meant was the average fuel consumption readings which are frighteningly low and not 47mpg as spec states

New owner of 22 plate Karoq 1.5 petrol Sportline
The average speed readings are frighteningly low (low teens to low twenties) am I understanding the data wrong or is there something I've overlooked like a reset or something? Am I in the wrong driving mode?