Silverlight application has a processor from 20% to 40%

I am not very good at Silverlight, but the application that I am trying to support constantly works with a cpu processor from 20% to 40%.

The application simply shows the data from the database, and I believe that the developer refreshes the page every minute, but between the processors is still 20%.

I am trying to argue that this looks a little high, but the answer I get is that it is normal.

Any counter arguments I can give?

Jd