Well, canonically, yes, and no.
All Hail King Julien made him a chillaxing party animal without losing his egotisical side
While the Movies and the Penguins of Madagascar Tv Show made him an egotisical selfish king who's IQ Level is a mind of Driftwood.
He isn't a dumb person as he is shown to be quite the idealist whenever he comes up with a plan, but that's all I can come up with.