Use the same value for LOITER radius as in stock autopilot.
@ -55,7 +55,7 @@ THR_MIN 0
TKOFF_THR_MINACC 4
TRIM_ARSPD_CM 1400
TRIM_THROTTLE 35
WP_LOITER_RAD 70
WP_LOITER_RAD 30
WP_RADIUS 90
STICK_MIXING 0
THROTTLE_NUDGE 0