You cant dodge auto attacks by spinning around monsters. If you are in range you will get hit. However they cant hit you if they are to far away. Like sprinting during a mass pull the guys in the back obviously cant hit you until they catch up, but most monsters run at or faster than players so it's a sprint only option.

The only caveat is very specific attacks that lock on to a location while casting like 10 ton swing cleaves from minataurs or those upright dragon creatures that 'charge up' their attack moves and you just dodge them. But for the most part, autos will always hit unless you move away, not around. And charged moves go off (you cant run away from a tabk buster even though you bolt away while its frozen casting)

The 'slow' turn from monsters is just an animation. It's still hitting you regardless of the visual.