Cause:

The Speos licensing writes temporary files every 4 seconds into the Windows %TMP% directory on the local computer. Each time Speos licensing writes the files, Windows Defender scans the executable file responsible for writing them, Spaceclaim.exe. As Spaceclaim.exe is installed on the network, there is an important network bandwidth consumption every 4 seconds.

Solution:

In the batch that launches the network installation of Speos, set the Windows %TMP% environment variable to use a directory that is not scanned by Windows Defender, ideally a network path.