Exclamation [Q] disable glonass

there is a way to disable glonass and use only gps?
using glonass my htc one fix in just few seconds but the accurancy is very low...comparing with my old desire that have only gps.
gps accurancy is near 6-8 meters
in my htc one accurancy is at best 18-20meters

so there is a way to disable the glonass satellite reception? i can wait 30 second for fix if my position is more precise...