From a comment in the article: > 3.0 is 10% slower because of the change from ints to longs. If you read it carefully, they mention that there is space for imp

From a comment in the article: > 3.0 is 10% slower because of the change from ints to longs. If you read it carefully, they mention that there is space for improvement, but they want to have it out so people can start to use and see the differences. Release early, release often (and it took 3 years to get there, so better do this once and for all.)