Quick Fixature in existing silverlight website

We need to fix following problem in existing silverlight website: Current website is for online communication developed in microsoft silverlight. We have a admin and guest modules: Admin : Admin can upload a ppt/pptx/pdf file, text messages, share video , check the online/offline guest buddy status. Presentation and pdf is controlled by admin. Admin will do next/prev , zoomin/out and same reflected on guest page. Guest : Can see the video, ppt/pdf controlled by admin, send text messages: Problem : Without anyting and before starting any video, there is a huge contentious network usage and download. We need some silverlight expert who can solve this problem of unnecessary download speed usage from our existing code. To be Given : Existing full code of the application We need : We browse the application and login. There should be no unnecessary network activity and download with ppt/pdf , chat and buddy status module. This should be a startup of long term relationship.