Rspberry USB video freeze

I bought the
Advanced ROV Electronics Package with the USB camera . and it work perfect except the Video in Qgroundcontroll .
Video image freezes about every 10 seconds .
is this a problem with the camera itself, or is it the communication between raspberry and pc?.
I have the same problem when i connect the Rasperrye pi direct to the PC with Network cable

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Hello,

Did you check our Poor video streaming performance Guide in ardusub.com ?