New Xcarve set up - need help dialing in speed - HALP!

So I got my new xcarve all set up and my new Jtech laser running, Im having a problem of when the laser shuts off and travels to its next point, Its leaving little lines in the foam from where there is no time for the laser to fully shut off before it moves. Im looking for what is that adjustment call. and in my GRBL setting, what is it call so I can slow it down.
Peter

Edit: Looks like the laser is not turning off fully and this causes the material to get butrned for a sec. any way to have the laser turn off in between points?
Peter