Default [Q] GPS tracking awful - P6 wrong decision?

generally i'm using Endomondo Pro for tracking my sports activity (jogging), but with the P6 it seems nearly impossible to get good and correct tracking


I tried it now several times with several different ROMS and Tools , but the tracked GPS data is really awful...

With my last two smartphones (HTC HD2 , RAZR XT910) the tracking was much much better ...


Does anybody uses this phone also for GPS tracking with better experience (or does this phone have an ****ty GPS ) ??

When yes please tell me which ROM and which Tools..

thanks in advance ! m
Oneplus One - CM11S
S3 Mini - CM11