Actifit Report : Inaccurate measures

Peace family,
The actifit app is bugging since last year.
I update the software but not sure why it does not accurately measure my move as I walk on foot.
If you have the same issue share your opinion about the possible solutions.
Have great day.
This report was published via Actifit app (Android | iOS). Check out the original version here on actifit.io

Walking