Why FPS Can't set to between 21 and 30

Target Platforms Mobile
1

Application.targetFrameRate = 25;

But the Xcode displays 30FPS ??

2

See this on Unity Answers.

3

thanks, I’ve closed Vsync, can set it to 10 or 15 , but 21 or 25 is not OK.

4

You can’t turn off vsync. Realistically the options are 30 and 60; anything below 30 is too slow.

–Eric

5

OK ,thanks