problem with speed

My 94 integra (Auto) takes a long time to build from 60 to 100km. Plugs has already been changed.

How many miles are on the car?
When did it start doing this?

Need a lil more info than that to help ya.

manual or automatic ... how iz da clutch?

112000 km...problem started at about 111000 km. Injectors have also been serviced and fuel filter changed.