minimum interval in timer

hi guys,
How can i set <1000 interval in my timer? coz 1 sec is too slow for my application. please advice. TQ

<asp:ScriptManager ID="ScriptManager1" runat="server" /> <asp:Timer ID="Timer1" OnTick="Timer1_Tick" runat="server" Interval="1000"></asp:Timer> <asp:UpdatePanel ID="UpdatePanel1" UpdateMode="Conditional" runat="server"> <Triggers> <asp:AsyncPostBackTrigger ControlID="Timer1" EventName="Tick" /> </Triggers> <ContentTemplate> <asp:Label ID="lbl_result" runat="server" Text="0"></asp:Label> </ContentTemplate> </asp:UpdatePanel>