JumpEye

JUMP EYE ◆Attention on using slow videos in the camera roll◆ 

The playback speed of slow videos saved in the camera roll will be edited to normal speed forcibly instead of slow at the beginning and the end of the video. If you load the video as it is, the playback speed at the beginning and end of the video will not be slow in JumpEye as well, so you will not be able to measure the video accurately.

To fix this issue, go to the Photos app, select the video you want to import and tap the Edit