I change IOS setting FrameRateLock from PUFRL_60 to PUFRL_30 in editor, and I found DefaultEngine.ini changed, but on IPhone X it run to 40+FPS, Look Like this setting not work in fact. is there other ways I can limit the fps to 30 on IOS? I also change GEngine->SmoothFrameRateRange to 30 FPS(of couse it is a FFloatRange), it work well on andriod，still not work on IOS