Slight Pause in my Printing (no replies)

Hi Guys
I have upgraded my firmware to the latest Marlin firmware to my Prusa i3.

While printing there is a slight ( split second ) pause to my printing.
I have changed the Jerk from 20.00 down to 5.00 and no change. Not sure whats causing the printing to do that slight pause during my prints. It seems to be when it changes LINES, not even when it increases height. I tried printing from SDcard & USB.

Any suggestions would be appreciate it,

Thanks
Vaughan