If your network connection is slow, it is likely expected behavior for that much traffic to be generated. Note that more traffic is needed to establish the various WMI connections to your client machines than to send data back to the Lansweeper server. Every time Lansweeper queries the client machine's registry, a new connection is established and more traffic is generated.
We would recommend scanning your machines locally using LsPush.
P.S.: We've deleted your other thread.