Currently there is one global threshold for a "Responce time Warning" and "Responce Time Error"
For a company that has locations all around the world monitored from one location this is not sufficent. One device might need a Responce time warning at 10ms and a different device which needs a warning at a responce time of 200ms.
It would be nice if the program looked at the latency for a week or so and then picked a "Warning Level" for that device which is customizable by the admin user if the value the program caculated needed to be changed to a different value.
I would also want the violations of the "Warning Level" to show in a "Slow Responce Time summary" view on the web page similar to the "Nodes with Problems view".
You should consider creating an idea for this in the Network Performance Monitor Feature Requests forum. That way the community can vote on your feature request. Please link back to this post should you create one.