Know that pmfun doesn't have always valid info but it seems that it should be like this. These augu are not overkill, it's just little bonus.
https://lineage.pmfun.com/list/augment
pasive emp
3241 Item Skill: Empower 10 +55 mAtk
active emp
3133 Item Skill: Empower 10 +61 mAtk