when my car is in park and pressing the gas paddle the engine rev's slowly on 2004 Chrysler Crossfire

i was at the light and i press my gas paddle to go but the car moved slowly ,like it was in neutral, and now while in park and pressing the gas paddle i have to press it to the floor to get the engine to rev this cable or a line

Asked by for the 2004 Chrysler Crossfire
It could be many things to cause this problem.
Is the Check Engine light is on?
Most common problem with this symptoms is the Electronic Throttle Actuator(ETA) . Many of them fail .But really needs to see it by a mechanic.