It is. They have their own formula, so you'll need less experience between the levels instead. For example, normally there is 4200 experience to level 8. In Faloria, you will instead gain higher levels with the same amount of experience, so you'll probably be around level 15-20 instead. (Just an example)
I were playing Faloria 1x a long time ago, and I can tell that 2.5x is absolutely perfect for players who enjoy leveling up fast, wars, fights and such. I would prefer 2x honestly, but I think 2.5x might fit aswell.
And, sorry for bringing it up again.. but I suggest opening up Rookgaard after at least 3-4 days max. What do you think about that?