Ada Wang Dark Nurse  

Replace AW default costume

I tested the entire campaign and there was no frame drop.
But if you still have frame drop when you're in water or shooting at an enemy.
I suggest you use Allow Costume Changing InGame MOD
You can solve frame drop by switching clothing in game.
Just like  :    Leon jacket->Leon shirt->Leon jacket

Download:

Dark Nurse(with mask)
Dark Nurse(with mask) - oily
Dark Nurse(without mask)
Dark Nurse(without mask) - oily