I tried to play on difficult mode but i saw that boss type enemies (BTE) are way too boosted compared with normal enemies!!! I.e. in the catacombs under aleroth bosses are so strong to kill you with one hit, if you are lucky with two.
The strange thing is that the first timei played on hard difficulty that enemies was stronger but not stronger like the next time i tried. I thought there was a random BTE boost every time you began a new game but retrying more and more times I can say that BTE are boosted too much.

Is there a way to lower the enemy boost? With an editor maybe?