The back wall behind the first boss doesn't have collision, so you can just jump up there with a DH and glide past the first 3 bosses out of bounds. Then some precise jumps on the ship skip every other boss as well.

Credit to @pastarizzoto for sharing this skip idea.

Note that if you hit the cannon from far enough away, it won't stun you for 2 seconds.

Items used:

• Wearing: Onyx Amulet with Wind Sculpting Stone & Harmonic Music Stone, 3x Azerite Armor with the Longstrider trait, Scroll of Momentum, speed enchants
• Before entering: Fried Bonefish, Charged Phial of Alacrity
• During run: Nitro Boosts, Quickwick Candlestick