Hello,
I did a similar ticket here in the forum:
I see the same problem also if the receiver of the camera data is inside the robot. So, no external network interface is used, only the internal loopback interface.
If you use a faster external connection (like fibre) than you have better results because the network packets are processed faster by the hardware and a packet fragmentation does not occur so often.
In my ticket, I described what I think what happens in the software of RosBot: The internal network reciever software part is not aware about the fact that network packets can be divided into several fragments and a receiver (internal or extern) must collect as much packets as needed to fulfill the read size.
I think, this is here the problem.
Could anyone of Husarion or ROSBot check that?
Best reghards,
Matthias