Sensitive throttle Suzuki Vitara

Hello.
Hope some one can come up with some help. I bought a 1992 Suzuki vitara JLX 16 fuel injection with 147000 kilometers on the clock. As far as I can gather the engine is in good nick, doesnt burn oil or over heats, stars without any problems on hot and extreme cold days.
The big problem is having a relaxed drive The trottle is very sensitive. Driving this car gives the impression that its my first time behind the wheel. I am sure a lot of people can recall the first day behind the wheel head jerking back and forth. I checked the petrol cable and lubricated it, everything seems okay from the throttle body down to the pedal.