Too many high level draug spawn at a low player level. Whilst clearing a dungeon at level 8 I encountered 10+ draug wight and scourge and even 3 deathlords. Definitely ruined that dungeon for me. Perhaps you could make the script spawn more enemies of a level that is suitable for the player, or low level enemies have a much higher chance to spawn than higher ones?
Great mod though definitely needed in the game.

Thanks for the feedback. I will look into how I can possibly set the level of the spawned enemies.