Dear Sir,
I attached a demo project (LabVIEW 2019 SP1 + DSC 2019) to demostrate the streaming issue.
You can see it cost about 400 ms to stream the sin wave through 1984 input registers.

You can run the two Master/Slave VI on the same PC to finish this loopback test.
Run slave first then run master, you'll see the time to finish the transmission is about 400 ms.
Do you have any good method to increase the data throughput?
Thank you