Video quality issues?

Hey guys I have a gbox q I'm running kodi 16 and iptv nfps stalker. I recently borrowed a firestick from a friend to try it out the picture quality is much better on the firestick am I missing something? I thought that the gbox was a much better player. I don't know if maybe I'm missing something maybe something in settings? or maybe the gbox is not the way to go for iptv. Any help is appreciated.

check your settings in the gbox make sure it didn't change to a lower res also check what res is showing in kodi under system the picture shouldn't be any different.