Darkseid wasn't affected by the crisis at all as he hid Apokylips away in an alternate dimension.
People differentiate the two - Post and Pre Crisis Darkseid - because before the Crisis he was seemingly nigh omnipotent, Galactus style.
After the crisis, Superman has been able to beat him.
Maybe this is inconsistency...
Maybe Darkseid has become weaker....
Who knows?