Fps problem?

Hello guys i have purchased a formuler z nano. When i click in the Button info it shows 25fps.

if i open the same stream in my computer it says 50 fps. Is there something im doing wrong? Thanks

yes they are

the exact same channels, all my cannels are 50 fps on my computer but it says 25 on box.

I just checked on othwr channel and it said 19.3 fos wich seems a random number. Maybe its just software bug and its playing in 50 fps