LG Venus VX-8800

Hello- When I take a picture of my 8 month old son obviously he is going to move. So when he does the picture is totally blurred by his movement, because of the delay of the picture being taken once I hit the button. Does anyone know if that can be adjusted in the camera to quicken the snapshot? My sister has the Lg9400 and its so quick when she takes pics.
Thanks in advance!!