I have a web part page that includes a Nevron Chart for SharePoint web part. I use a custom-developed web part that provides parameters to the Nevron web part using JavaScript, since this option seems to perform better than using connected web parts.

The page is functional but it's slow. When I look at the calls going back and forth to the server via Fiddler, I see the following:

POST /_layouts/Nevron/Chart/NChartCommander.aspx HTTP/1.1 (initial call; parameter not set yet)

POST /_layouts/Nevron/Params/NParamsCommander.aspx HTTP/1.1 (set parameters here)

POST /_layouts/Nevron/Chart/NChartCommander.aspx HTTP/1.1 (final call to web part with parameters)

It appears that the text of the request in the first and second calls to NChartCommander.aspx is identical.

Is there a way to dispense with the first call to NChartCommander.aspx, since the parameters aren't known at that point and won't be until I set them with JavaScript after the page loads?

Thanks in advance,
Dan Jordan