I have just updated from the Dash Cam 55 to the Dash Cam 56 and at the same time updated the wife's Viofo A119S to the A119V3. The GPS speed display on the 56 has a massive lag, when stopped at an intersection it will show the vehicle is still moving and when accelerating from the intersection it will show the vehicle is slowing down till it eventually catches up, this did not happen with the 55 and the Viofo A119V3 is extremely accurate with the speed displayed. Is anyone else experiencing this problem?