Wow, where to begin.

Is the sight completely locked down? (no screws loose, etc.)

If you use a peep, is the peep tied in securely?

Are you pulling a poundage that tires you quickly? (after 30 shots are you fatigued?)

If you are using a D-loop, is it secure and not moving up and down?

If you are not using a D-loop and instead using nock sets...are those secure?