Hello again,

Hit that same bug, so just remember to save often and when you see the Troll King, think of your last save. Run like hell to make a new one.

minor spoilers ahead?

So I've been playing some more and I have come across the Troll King by the spider den in the south western portion of the map. Again I encountered the Troll King slow-effect bug. I see that it's a spell now ( I didn't notice this the first time because there are too many trolls too close together in the first cave ) This time, all I did was use pause twice, use a potion, and switch my weapon from bow to dagger before the spell timer ran out.

My character lost the active spell indicator effect, and his speed returned to normal, but his attack speed remained slow.