Me personally, on normal level, I think many of the fights are quite hard. Obviously when you redo a fight it gets easier.
If things are too easy.... You're not obliged to level up if you have the XP. So why not continue to play on lower level ? My Gale in camp is still lvl4, but if I take him in the party now, he can level up to 8. Nevertheless, I could stop anywhere between 4 and 8.