Auto take off always causes stall and torque roll

hey everyone, I have an AR wing pro, which always fail the auto take off by hand launch, but always succeeded with fbwa mode or stabilize mode.

i noticed in the many video recorded that auto take off failed because as soon as the plane leave my hands, it always pitch up, which causes stall and torque roll left. and if i take off in stabilize mode, i tend to led it go forward for about 5m 1st and pull up…

is it possible to solve my issue with using [TKOFF_ROTATE_SPD] set at 15 m/h (55kph), so that it will not try to pitch up right away?

edit : it flies perfect in MANUAL, STABILIZE, FBWA, CRUISE (with airspeed analog sensor), everything has been set perfect… no oscillation in cruise.