The blood effect itself does not actually move.
However, there is a much easier way to create great looking blood hit effects for shots where your camera is moving in Adobe After Effects
Let's assume you took some footage of someone pretending to be hit by a bullet.If the camera is stationary, it is fairly easy to add some blood splatter stock footage to your scene and, using some masks and different blend modes, create a cool bullet hit VFX .
However, the moment your camera moves during during the shot (pun intended), you can no longer simply place a stock footage element on top of your footage because it won't follow the movement of the camera.
While you could manually animate the position of your blood hit elements to follow the camera, there is a much easier and more precise way to achieve the same thing in Adobe After Effects: camera tracking!