Just because the game has a bug, doesnt mean you have to play it with a bug.You can choose your own difficulty by making all battles manually on paper. For example i choose my starting imaginary hp lets say 1000, if they go 0 then i simple restart the game from the beginning (Permadeath). Everything can be done if you have imagination.
As far as battle speed is concerned, you can buy attack power from shop, or simulate battle damage on paper as well.
normal enemies are harder than bosses !!!
you have to get best armor in the game with cheats in order to beat, unlimited hp ressurect spamming paladins.