[ns] unreasonable average end to end delay of TES video traffic model

[anas]

Dear NS users,

when I did a simulation for
 video traffic of TES model  
over DSR routing protocol 
with 50 nodes and 
simulation time of 200 s
and grid of 670x670
speed 20
pause  0

NS2.33 over red hat Linux platform 

the average end to end delay was 5 Sec which is unreasonable value 

thanks in advance 

Anas