In the config.yml there are now settings to enable AimAssist and QuickFire, as well as customize them to your liking. By default, both will be disabled.

AimAssist tries to identify which opponent a player is targeting and adjusts the trajectory of their arrow to help them aim. The new aimAssistTolerance value defines how accurate (in degrees) a player's aim has to be before AimAssist will help them. aimAssistStrength is a value between 0 and 1 which determines how much of the arrow's final velocity will come from the player's aim and how much will come from AimAssist.

QuickFire will let players fire their bows much faster than in vanilla Minecraft without loosing the arrow's speed. You can determine how fast arrows fired by QuickFire will be with the autoFireArrowSpeed value in the config.