Well, if it's your second class, keep in mind you're not doing nearly as many dungouns, quests, etc. in order to level anymore. Now you're relying solely on FATE grinding, which is by far the most mind-numbing, god-aweful method of leveling known to man, only ever surpassed by the new-age parties in Gusgen in FFXI. >/Personal opinion rant.
Regardless, I think you'll find that it's still pretty fast - but it's probably going to test your patience a bit. If you enjoy dungoun grinding, you could wait for 2.1 and do the increased dungoun exp... but let's just hope that it's worthwhile enough to justify the wait.