Latency of display on the software installed on the laptop

Hello,

sorry for our english but we are french.

Our problem is just a latency of display when we write a command, this command appears at about 3 or 30seconds after we write it.

For example :

1 @ 5 enter

The channel 1 goes at 50% on stage but the command line is empty and write that after waiting 3 or 30 seconds.

Can U help us, did it happen to someone else and because of what ???

Thanks

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