A

2019-08-05_161214.jpg912×356 144 KB

B

2019-08-05_160344.jpg1107×447 150 KB

C

2019-08-05_161725.jpg911×373 156 KB

(The third column means the time consumption(unit: μs))
The three images are from three slightly different code snippets. Anyway, there will always be a line that takes up 60ms.
I would like to know why this happens and how to shorten the time?