I don't know what "Steigerung der passgenauen Einsatzfähigkeit" means (I speak german; I just don't know what it means), but it sounds like they still need the exploits from FinFisher.
I would translate it freely as "to cover more specific situations", specific exploits sounds like a candidate. Or maybe for different OSes, or against different communication software their own solution can't cover.
Legal German is like any other "legal Language". Not for human consumption. ;)