If you have defined actions in the Scene Responder to be performed after clicks, these are carried out with a delay of approx. 2 seconds. This is intended and the reason is: If you want to trigger different actions in the Scene Responder e. g. after a single click and after a double click, the system requires a certain time to clearly identify whether a single click was performed or a double click or even a triple click.
If a triple click was made and no action is defined, the system does not do anything.