Monsters of Morrowind

Other people have complained about the monsters being too hard.  There is a difficulty slider in Oblivion's options menu if you find it too easy.

This is covered in the FAQ;

» Are Morroblivion creatures/loot/npc's/merchants leveled like in Oblivion?
Background: In default Oblivion, many of the game's aspects change as your character's level increases.  For example, a certain boss creature will always be at a level that is five level's higher than your character's current level.  This is applied across the game, but this was not the case in Morrowind.  This is a controversial topic, and there are many mods available that change the way leveling works in Oblivion (such as Realistic Leveling, for example)

The only part of the Morrowind worldspace that is leveled are the leveled lists that have been added to merchant inventories so that you will at least have access to some leveled items in the game (if you want to buy them that is).  Virtually all merchants sell appropriate leveled items (i.e. a clothier sells leveled clothes, an armorer sells leveled armor) in addition to their usual inventory of Morrowind items.

Other than that, nothing else is leveled.  Creatures, quest awards, loot, npc's, etc. are all fixed like they were in the original Morrowind.  Maybe some day someone will make a mod for this, but considering that (1) that would be a huge amount of work and (2) many people go to great lengths to remove leveled items/npc's etc. from the original Oblivion game -- things will probably remain the way they are for now.