Uhm, even at 1.2 speed for example you're invisible when running, but when you run away, to them your character is in the same spot.
For example if you're pvping someone.. and you just run away, on the opponents screen you'll still be standing there, so you'll see yourself getting attacked.
Then when you reincarnate you'll be back where you ran away.
you have to make like stops or something to actually change position. Other people see you where you last stopped, it's weird.