Why is my target locking weird?

Hold right-click to target the swordspoerson.
Move sideways while target locking,
And you gradually go further away from him/her as you circle around him/her.

I figure the cube isn’t turning towards the swordsperson quick enough,
But the time is set to 0.


P.S. WASD to move.

P.S. why does my character slowly sink a bit into the ground?
I tried 0 and 1 margin.


TargetSystemWeird - Copy.blend (1.06 MB)