Game running very low frame rates

[MakeItOriginal]

I have a iPhone 6 and the latest version of iNDS and when I play new super Mario bros sometimes it's a smooth 60 fps but recently I get like 25-35 and the game basically goes slow motion any help?

[EdwardElric64]

I've had this problem before, but never found a fix, what is basically happening is sometimes the rom is not compiled correctly and that causes the low frame rate, but that's probably not the case here as you said before it ran perfectly... So I don't really know

[MakeItOriginal]

I found the problem, it was that my phone is on low power mode, guess you get half the frames rates on low power mode

[WilliamLCobb]

I was about to ask if you had low power on. This under clocks the CPU and causes you to lose frames