Dave,
Don't change your focus from target to arrow. Just acknowledge the flight of the arrow in your peripheral vision. We all love to see the flight of the arrow when we shoot. The trajectory of the arrow will be remembered and you will be able to "see" the flight of the arrow before you shoot. Just enjoy the flight of the arrow. By doing so you become familiar with the flight. In Masters of the Barebow, Darryl Quidort said he sees his arrow flight before he shoots. Steve Fausel said he sees a picture of the target and arrow flight. That adds another facet that could prove helpful.