He finished off the Dread Lords in under 24 hours but I, Mascrinthus (the last remaining good Mithrilar) was secretly helping him defeat the Dark Mithrilar, Draginol.
But seriously what difficulting level are you playing? I'm still on the first part of the campain because I did not get to start until very late last night so only got up to May 2226. However, at difficulty level Tough which means the AI is playing at level Intelligent (best analysis but no cheating bonuses), I'm way ahead of the Drengin.