Almost a whole 1 minute passed from the plane starting to move until it left the runway. It seems that this is called the take-off operating mode of flex engines. It is not the maximum engine thrust that is used, but one that is sufficient and safe for normal takeoff.
Filmed by me at Almaty airport. On the phone.
By the way, such “maxes” of SCAT airline fly to Moscow airport Sheremetyevo every day.