Jerkiness in the encoded video

[Chaithanya]

Hi All,
When do we see the Jerkiness in the encoded Video?

I have a streamer to which 4 web clients are connected(all are showing Quad views with each fetching 25fps. i,e altogether 100 fps is pumped to a single client)

I measured using the Network protocol analyzer, each client is receiving 100 fps. But when I open more than 1 client with Quad view, I'am seeing some jerk in the motion of the Video

Does anyone know what could be the reason??
Does network bandwidth utilization has any impact on this??
Please let me know

[RFBurns]

What bitrate is the stream? What type of stream, ie windows media or real, and what is the network specs....server specs, router specs, bandwidth per node and total bandwidth, number of clients on the network, their pc specs.