about critical damage:
critical damage deals 150% damage by default.
heightend refelexes influence the damage you DEAL when you score a critical hit
so the formula is this 150% x the percentage in heightend reflexes
for example if you have 10% heightened refexes then it would be 165% damage
if you have heightend reflexes at 75 you do 263% damage
then there is the chance to score a critical hit how higher the % the more chance you have to score a critical hit.