Doubt Guys on Boss damage

[Xmenarmy]

Like lets say i have 2 build.

1) War with 6000 dps
- Like i see example around 25k dmg to boss with proc.

2) War with 100bd, 5000 dps
- I am seeing the damage taken by boss is 27k with proc not big diff.


Damage done by us with BD gears is not showing properly?