This is one of my greater concerns, and why I always refuse to be power leveled, and why the ease of instant travel has never quite sat well with me, either, though that at least is more easily avoided.
I hope so much that - especially now that they've decided to keep power leveling in the game - they bring the 'normal' gain rates to a less break-neck pace. I play MMORPGs to just enjoy the journey, and bumping into or playing with people while I travel, and for me my progression through levels frames that, as does watching my character develop - both in roleplay terms and statistically. I don't push for end-game and for me early-mid game isn't the boring bit (and in my opinion, when the people who believe that aren't the minority, there is something wrong with the game itself).
For me, I have to fight against the instinctive feeling that the game ends at 50. I have slowed my leveling right down, largely by just plain playing less, as I find myself compelled to hold back now that I've passed level 43 in the class that I feel defines my character, and engaging in end-game content is.. well, for me it's pretty deliberate. And yes of course I know there are other classes to level, but again, Lancer is the class that defines Forra, and all the fun I'm having progressing through it, once I hit 50, will be done and gone.
So.. yes, suffice to say this thread has my like, for certain, and no I'm not really comfortable with how fast I gain experience, especially given the fact that for people who want to level fast, power-leveling has been made very much an option.