car: civic esi 93 (automatic transmission)

problem: travelling from high speed (around 90 kph) then braking gradually to low speed (around 30 kph) as the traffic slows down, the car has difficulty accelerating once the traffic speeds up. RPM increases but the car does not accelerate accordingly. the feeling is as follows: feels like slipping clutch disc. also feels like the A/T did not downshift.

before, this happens only after driving for hours but i experience it now after only a few minutes of driving.

anyway, i plan to change ATF first to see if it will improve the transmission.

what ATF brands available locally can you recommend? any suggested additives etc.

tia