Bugs in WebCam when try to use it in PsychoPy

Hello world!!!
Please could you help me set up my camera because when I try to record videos, I get the wrong recording time.

My videos recorded on the camera through Psychopy have 2x faster playback. The video itself lasts 10 seconds and the entire video plays in 5, and at 30 fps, that is only 15 fps, which is very low.