chances are it can be programmed to slow down when raised so speed is limited but it would have to be a custom setting made by a tech.
It's not something you can do other than to use the operator 'preset' modes which are most likely not slowed down that much.
Most newer lifts do have access through the dash but what you can adjust is limited. To get what you want it would have to be done with a handset or laptop depending on what system is in the truck.