I succeeded by luck to correct this problem temporary by remove O/D when I am driving in low speed (less then 60km/h ) and then in Highway I turn on O/D. The problem acceleration loss is not repeat .
Note: I was inspired the logic of manual transmission, the 5th gear speed was reserved for high speed on HWY
I would like to ask your advice if it's safe to do this (turn on and off button O/D) in long term run.
Thanks in advance,