Aggressive takeoff

Hello.
I’m using ArduCopter 4.2.2.
I have very violent takeoff in Auto mode.
What should I do?
Which parameters should I use?

Send on-board log (latest *.BIN file located in SD card).

WPNAV_ACCEL_Z
WPNAV_SPEED_UP

But default values don’t typically result in a “violent takeoff”

I didn’t change these parameters before and they are default.
WPNAV_ACCEL_Z = 100
WPNAV_SPEED_UP = 250

.

OK, so lower them.