Howdy! Are you able to provide some more insight into this problem?

Some information that might be able to help finding a solution are:

- Has it always been slow, or has it happened after an update? - Does Microsoft Report Viewer run inside of Firefox for Android? - What is the mobile device used?

I'm not familiar with Microsoft Report Viewer, but the information above will give a better direction for finding a solution.

Thanks! :)

Thank you for your reply.

The mobile device I using is Motorola . Microsoft Report Viewer runs inside of Firefox for Android.

The web form display normal in dolphin browser for android. The web form display normal in Firefox browser for windows. The web form display normal in IE for windows. The web form display normal in inside browser for android. But The web form is loaded so slowly in Firefox browser for Android, and after loaded ,when I expand the "+",the android need nearly one minute to load the result .

And It is difficult for me to catch the expand image "+".