Delay of button's highlighted state

Question

I have the issue in two completely different situations, which makes it really weird.

1. Situation: A UIButton in as a subView of another UIView.
2. Situation:

Answer 1

Are the UIButtons inside a UIScrollView ? If they are, the delay is there so the scrollview can determine whether the touch is for scrolling or it should be passed on to the subview.

See also UIButton touch is delayed when in UIScrollView