Not really. By comparison, the combat and controls are less responsive in Assassins of Kings, especially in the beginning. I was struck by this when I first played. It takes some time to grow accustomed to them -- and learn to roll a lot more than seems decent for a witcher. Quen can also come in handy. As for levels, if you've followed all the quests, you should be on-track. Finally, the fight with Letho in the Elven Bath, which is the one I believe you mean, is always a challenge.Am I playing this wrong?