@Yves_BAZIN that is theoretically it is possible to load 2048 pixels. cool! how long does it take to process one packet? and what about packet loss? or the absence of a signal from one of the universes?
I did not take any measurement but if you look at the video it’s pretty smooth and really close to the output on my laptop. I know that the universes are sent sequentially as they come from the same laptop. I keep in a variable the received universes ( a binary each universe is a bit) each time I encounter the first universe a reset this variable to 1. When this variable =(1<<nbuniverses -1) I have received all inverse of the same frame and I can display. If I haven’t met the threshold to display before I received again universe 1 then the entire frame is ‘put in the trash’
@Yves_BAZIN bingo! a good fix for my implementation 
it would be nice to finally wait for your code.
@Yves_BAZIN reception is carried out through the Broadcast?
@X-WL1 not via broadcast