The game has automatic easy mode: if you die I think three times in a row, every enemy drops down one rating on each side, then one more for every death after that, until they’re all green on all sides.I don't really mind the isometric view myself, but the combat is pretty annoying. You can just cheat if it's a big issue, edit yourself a ton of the combat items and just instant wipe everything.
One trick I found that helped is to remember that combat is not turnbased: if an enemy throws something at you, you can avoid it if you keep moving; it’s just a matter of planning out your movements. Likewise, if you throw something with area-of-effect damage over time, enemies will just stay in it as long as you don’t move.
All in all, the combat in this game is kinda shit, and not very well balanced (fucking bat stuns), but pretty exploitable.