WPF Performance-Wise?

Hi,

There are a few Timer that can be used for WPF

1. DispatcherTimer

2. System.Timers.Timer

3. System.Threading.Timer

I am facing some performance problem and not happy with it. Let me descibe a brief about my scenarios.

The app makes multiple calls to Web Services(

simultaneously)

then return json data by using HTTPClient then update the UI.

At this point, I am using the DispatherTimer. I have got a number of the DispatcherTimer Instances with specifies timeInterval(E.G 5)

Which timer shall I use out of the three timers above?

Shall I forgoes the DispatcherTime then using separte Threading the schudling into Dispatcher's Queue of the running Thrading?

Please give me more advises and you opininon