Look up a mod called Berserker. Real good on Galatine Prime. (On almost all crit melee, actually)
Well, for starters, the prime is better. And you did add the crit mod, right? Pistol Gambit. Necessary for the weapon to be anything that resembles strong.
I can see why they would say it, but I would say that’s not the case.
Mutalist Cernos is a status weapon, while Dread focuses on critical damage. They would be used for completely different things, though Mutalist stops being useful for more than the status effects themselves rather quickly. Pretty much just useful for Viral or Corrosive procs after enemies hit the end of the star chart.
Cernos P, while fun, is kinda underwhelming. Not as good as Rakta Cernos, Dread, or Paris Prime.