The post selection time settings on joystick selection
To prevent the user from indicating the same cell several times, you can set a post selection time. For example: a post selection time of 2 seconds will ensure that after selecting a cell, for a period of 2 seconds, no other cell can be selected. The post selection time can be set between 0 and 15 seconds.
Choose Tools > Joystick selection....
From the Timing options group, click Post selection time.
Do one of the following:
Click on to decrease the post selection time, click on to increase the post selection time.
Drag the slider to the left to decrease the post selection time, drag it to the right to increase the post selection time.
to decrease the post selection time, click on 
to increase the post selection time.