[Discuss-gnuradio] Effect of having multiple throttle in a chain of flowgraph

Hi,

I would like to ask what happen if there are many block of throttle connected between a source and a sink in pure simulation? I notice the GUI Interface (wxgui) is getting slow when 5 throttle block is connected between a signal source and signal probe sink.

| Signal Block | ---> | Throttle | ---> | Throttle | ---> | Throttle | ---> | WX GUI Scope Sink |

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Regards,
Muhammad b Rosli