Need Help on Recording Scripts for Graphs/Dashboards

I need to evaluate performance of an application (ENTMON-Enterprise Monitor)

1. Which opens only in Chrome.
2. Once logged in.....You Select Data Range and Applicaiton Name
3. Based on the above selection, graphs gets displayed
4. Number of graphs may vary based on the selection made
5. I need to evaluate the "time taken for all the graphs to display" for each application based on the time

I tried with Truclient and HTTP protocol...Both of them did not work.

Can you please help me on this?

Attached the sample graph of an application