what is wrong with my celica? Options

[Celicagt1995]

For a while my celica has been too slow. This is what happens.

When Im in the freeway going at 60 mph, I step all the way on the gas and it takes about 10 seconds to git 70 mph.

When Im going at 40 on the road it takes 7 seconds to hit 60 mph.

Before it use to take around 9 sec 0 - 60 mpg now Im not sure.

Another thing when i hit the gas the rpm goes from 2.5 to 4.5. Before it use to go all the way between 5 and 6.

I think this is a problem with the transmission but Im not sure. (its an auto)

One thing that might have something to do with this is that a while ago i was racing and i put my transmission on L2 and the rpm went to redline and the car felt like braking. (bouncing)

What do you think is wrong.

[Tech-Nics]

I thought it meant to never push the engine hard before it reaches full operational temp. I always let my car fully warm up before driving anywhere. Don't matter what time of the year it is. I've always done that with my cars.