So, one of the biggest bonuses an archer gets is Manyshot. The ability to fire several arrows all at once. In fact, an archer using manyshot can deal some of the highest DPS in the game.
Unfortunately, because of this, any archer without Manyshot, or with it on cooldown, quickly sinks to some of the lowest DPS. It makes it incredibly difficult to buff archery though, since almost any buff will also buff the already powerful Manyshot.
So, I propose a significant change to Manyshot. Instead of it's current implementation, the feat would give a passive % increase to an archer's double strike bonus. This bonus could increase as a player's BaB increases, and would stack with other abilities that increase double strike chances. This would normalize archery across the board, and allow ranged combat as a whole to receive an increase in speed.