If you're clearing say, a ragnarok advent battle in 4~5 turns, you're likely going to still be clearing it in 4~5 turns, switching a pride to a vigor. You might see better damage numbers but when it comes to a battle that is already quick to clear, they aren't exactly better, rather they make little difference because you're still clearing within the same speed. Of course, there are several other variables to factor in too but if you want to see them being better, you want lengthy battles in which you can sustain your HP at high values throughout the fight.