Ceres wanted to jump right after Octavius, causing her own mayhem on whomever the captain wasn't going after. As he was the only person who knew who he was looking for. But she stopped herself, deciding that she wasn't needed over there. The pirates on the other ship looked about as dangerous as the thugs they had picked up, so they could battle it out among themselves. She would stay and try to make sure that the ship wasn't sinking and was still ready to go when the survivors returned. 

Ace on the other hand waited a bit for the ship to get closer, and them jumped after the captain. He landed just as Cuttlam started moving after his target again, moving in between the enemies and the captain as quickly as possible. "Sorry, captain's busy. You'll have to deal with me instead!" He exclaimed, taking out both of his cutlasses. The first pirate tried to attack, but was quickly met with his death by a simple parry and stab. A definite advantage of having two weapons. Two more attacked. But the swordsman whirled around, slashing one of them and ducking under the other's sword, while at the same time kicking him aside. The fight continued like that, Ace showing that his title of 'Strongest swordsman in the North Sea' wasn't given to him by accident. At the very least he was keeping the enemy at bay. So the rest of the crew could close in from behind. Thugs were just thugs, but put enough of them together and they could still do quite some damage.