03 century autshift questions

I have an 03 century with a 14l detroit and the eaton 10spd auto shift I have a clutch pedal. anyways I dont have alot of experience with the autoshift when I am driving it seems to upshift fine and run good going down the road the spot I am having issues is slowing down in town or getting off the highway when I am making a turn that doesnt require me to stop. If I down shift manually it wont let me skip gears so I have to hit every gear and it takes for ever to get down to say 5th or something to drive through the turn if I press the clutch it thinks I am going to stop and then wants to go down to 2nd or 3rd it just seems to take a long time deciding on a gear if I am slowing down but dont stop is this normal? If so are there any tricks to make it better?

 

So is it normal for it to down shift slow it takes for ever to go down to 5th from 10th if I let it go on its own and hit every gear I have also had times when I slow down and take a turn and it seems like it takes a sec to decide what gear to go to.