Setting a timeout on XmlDataSource in VB.NET XML Feed slow sometimes

Question

Hey I have a XML Feed which is sometimes slow to connect to making my front page quite slow to load sometimes.

I load it as follows

Try

        XmlDataSource.DataFile = "http://www.rte.ie/rss/news.xml"
        XmlDataSource.XPath = "rss/channel/item [position()<=3]"
        dlRSS.DataSource = XmlDataSource
        dlRSS.DataBind()

    Catch ex As Exception

    End Try

    Try

        XmlDataSource1.DataFile = "http://mediaone.kantarmedia.ie/publish/rss.jsp?id=8"
        XmlDataSource1.XPath = "rss/channel/item [position()<=3]"
        DataList1.DataSource = XmlDataSource1
        DataList1.DataBind()

    Catch ex As Exception

    End Try

How Can I set a timer on these i.e give it 5 secs if it doesnt load, just forget it and go straight to catch for example