The game does tend to get easier as it progresses, especially if you reload a lot to get the best possible equipment. Unless you are using a weapon with Frost on it, though, it shouldn't be that easy, I don't think. With my warrior, outside of a few boss type opponents there wasn't too much that was a serious threat around level 29, but I still had to pay attention. Combat was easy in the 40s for level, but it wasn't until the final section of the game that it became a cakewalk (though much of the combat could simply be bypassed then).
You can always avoid using charms, over-powered skills, or not use specific types of armour, etc.
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