RE: Trans code P0700
Slowshifts? This car was my first automatic, as I started driving with a manual. It was "tough" to get used to keeping my hand off the shifter, lol.
It will shift slower if the overdrive button is pressed in and the throttle is applied lightly or slowly. It will shift "faster" if the throttle is pressed aggressively. When I say "fast", there's still a slight delay in response. I believe it to be the nature of the A604. I've driven other automatics since then and even my wife's Dodge Caravan shifts with a slight delay, just a bit faster. It seems that GM/Ford has faster shifting automatics.
I hope that this was your car's issue. It seems that way since it hasn't done it since, but sometimes, that second or third domino chip takes a bit of teetering before it falls and starts the chain reaction all over again, lol.