Andrew
The blurry quality of the Funtana is not due to movement, it is because of distance. From the looks of your photo, the Funtana is at least 12 feet, and more likely 15-20 feet behind the P-47. One of the few things The human eye and the photo lens have in common is a lack of depth perception viewing objects from afar-the blurry outline of the Funtana is what gives away its actual location, a fair distance behind the P-47 viewed from your shot angle.
WW
If this is true then the plane in front must be very small or the plane behind it must be one big SOB.