Uniques(titan) - Mobs around them, how to Decrease?

Hey Folks!

Is there a way to decrease spawn mobs(supporters) of the Uniques Titans?
I mean Lord Yarkan(titan), Demon Shaitan(titan), Isyutaru(titan). The uniques spawning them sooooo fast, there was about houndreds or more (those unique supporters), it will kill my priv server, when much ppl will start hunting those uniques , ref_nest or ref_hive? I know i can close them service "0", but this is not the way i want.

Thx for the answers <3 ;)

EDIT: Or should i modify skill of those Uniques? Any clues wich and how?

Each unique has some skills that spawn small mobs like elites and such. These skills will have a parameter of 1936945013 followed by the mob ID and amount.

Get the link from refobjcommon of the unique, check refobjchar ID, then take default skills IDs and look in _refskill, that's where you can edit properly.