Wfview runs super slow on Mac

I’ve installed on my Mac (3.3 GHz 6-Core Intel Core i5) seems to run ok, but as soon as I connect to the 705 over wan the program comes to a screeching slow halt. It’s running, but response to clicks and user input takes 10’s of seconds, and most often are not executed. No doubt I’m doing something wrong, can anyone help with recommendations? Thanks, John K1KSC