No armor penetration for energy based lightning abilities and kinetic based Crushing Darkness.
No way to mitigate the 10% internal damage reduction of the Inquisitor class buff.
Solution: Convert all Lightning abilities and Crushing Darkness to Elemental based abilities.
And for God's sake, if you can't remove the animation delay on casted abilities, then lower the cast time of all casted abilities by 0.2 seconds, so spot-casting becomes a viable tactic. This wont increase total DPS because those abilities will still be limited by the GCD, it'll just make them easier to get off in PvP.