http://www.nexusmods.com/witcher3/mods/2476

Just make sure you scan them, never know.

Hope this helps
gogwitcher300

I'm playing with a weakened quen and with more skilled human enemies.
Not sure if something like that is what you're searching for, but deathmarch with a weaker quen is definitely noticeable.

I think humans are fine as they are, it's the monsters that are just way too easy.
Especially the bear and werewolf.
Bears are pretty much the easiest enemies there are, you just need to dodge and then you have 4-5 free hits.
Doesn't make sense that drowners, wolves and nekkers are more dangerous.

The fiend was also very disappointing, even worse that you got help from 10 npcs.

The problem with drowners, wolves and nekkers is they are far faster than any witcher -- which is bullshit -- and so they can effectively stun-lock you, especially at low vitality levels and if you're not prepared. I also have an issue with fist fighting. A blow from a fist more often than not takes off more vitality than a bandit's sword. It's maddening.