Pilot or Acro in Auto Navigation?

Good morning everyone,

for very slow automatic navigation inspections (2m/s) I would need to make very slow turns (yaw), almost flat!
I don’t know what parameters to touch.
There is PILOT_Y_RATE which determines the rotation speed in degrees/sec during manual (stick) piloting but there is also ACRO_Y_RATE which should do the same thing but in ACRO mode

In automatic navigation which parameter should I change so that the turn is slow and flat?

Thank you