Just need to take care of patrol.. Right now there is no active stay area and patrol pump on newly inaugurated M5 link.
For N5 it is better to travel in day time as there are lots of trucks and speedy route busses... No issues for M5.
Also keep the speed @ normal, no need to accelerate even there is nominal motorway police. I traveled from Lahore to Karachi, yesterday and I have seen people who are changing lanes without any indication due to this we need to slow down in emergency.
Almost in 7 hour 20 minutes, we were @ sukkur exit from babu sabu interchange...including a 15 min stay.