Why is there motion blur in pictures of my webcam?

I try to solve a isuee.
When I use high resolution to read the CV I get some gost image inside the frame.
Can you help me ?

that’s called “exposure time”. turn the lights on in your room. that’ll make it better.

or increase the frame rate. that limits the exposure time as well.

you probably didn’t enable MJPG compression (it’s the FOURCC property). without it, frame rate naturally drops, which allows longer exposure times.