Default [Q] Poor GPS Signal

Hi,

I noticed I have a bad gps signal.
I tried fix from http://forum.xda-developers.com/showthread.php?t=1636790&page=7 which made me get a gps lock in less than 5s.

I installed GPSTest and took a screenshot after a few minutes (HTC One S.png), I did the same with an Xperia T at the exact same place (street) and there is a big difference.

I tried using it in my pocket while doing biking and get this result : 0.54 km instead of 15 in an open area.

Does anyone has a similar problem?

Thanks in advance for your help

PS : I'm on Maximus HD 10.0.0 (Android 4.2.2, Sense 5)
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