Ford Escort Bj.96 1.6 90Ps 16V Automatic Set idle

Hello guys, I have the problem that the stand gas is a little too high about 850 rpm and if I want to start now pushes the automatic vigorously forward and it is hardly possible to drive normally (if he has stood overnight it is even worse since the cold start Automic lets turn in even higher ) now my question where can I or can you put down the idle at all so at 600 rpm it would have to get better – I think. If you have driven for 5 min kan ma The car has only run 76 tkm and has maintained checkbook 1. Hd. I just bought the car and am very satisfied to this lack, and when I think about the coming winter I fear to get problems on smooth roads many times! Therefore HELP PLEASE must be possible to reduce the speed!! I say thank you already in advance and hope you can help me further Greeting vofi