1. Which enemy are you referring to? Some troops in PoP easily have 350 proficiency and use very good weapons, or are mounted and make use of speed bonus to damage you.
2. If you have played vanilla Mount and Blade, it should already be known that blunt and pierce have more damage against armor than cut damage, which is the default slash damage type.
3. Play smart. Don't engage enemies that outnumber you tenfold, and these troops can fill your screen with green texts.
4. Deal with it, always been that way. Best way to progress has always been to be a mercenary for one of the factions.
5. Press "U"