Pick all that apply

• 1Choice 1.

  A hitch is the time a frame appeared on screen later than scheduled, and at 60Hz a frame that goes past 16.67ms is the cause

• 2Choice 2.

  A commit hitch means the app process finished the transaction commit late (layout, draw(_:), prepareForReuse, and so on), so you look at app code with Time Profiler

• 3Choice 3.

  A render hitch means the render server (GPU compositing) stage was late, so you suspect offscreen rendering, blending, or too many layers

• 4Choice 4.

  You read hitches as a hitch time ratio (ms/s): 5ms/s or less is good, and above 10ms/s users notice

• 5Choice 5.

  On a ProMotion (120Hz) device the frame budget doubles, so the same code produces fewer hitches