Acuity is cool and all but the TTK for large groups of enemies is downright miserable with the [Daikyu].
Stop dealing 3 billion more damage than you actually need to and embrace the [Shredder].
This build revolves around [Split Flights], which gives us 500% multishot whilst drastically reducing accuracy so your arrows fly outward in more of a wide cone. We're combining this with Heavy Caliber as our base damage mod to widen that effect even further. Couple that with Daikyu's already high base punch-through which we're further enhancing with [Primed Shred] as our speed modifier and we end up at 5.2 PT, meaning your shotgun blast of arrows won't stop after hitting just one or two enemies.
Notable alternatives, with the final slot being flexible:
Swap out Vigilante Armaments for Thermite Rounds for some easy Blast AoE, swap to Primary Merciless if you do
Blast combo again, but play on [Saryn] with Toxic Lash and swap to Primary Blight