Statues in druid cave are bad design from the start, just busywork for nothing. They should make a proper quest out of those.
And i would remove the barrels in that cave as well just annoying design of a "trap".

You have to unchain everyone bah...and waste time. again!

If you don't they can do one of those crayz runarounds, run into oil and get hit by one of the status. At best you have to use helping hand just more busywork.

I think the reason it takes long is because every time you attack let say the statues in real time mode the character first needs to play the drawing - sheathing animation.