What's the logic in this question ? In a homezone, ALL trains run perfectly.
Kehte hai na, "Apni galli mei toh Kutta bhi khud ko sher samajhta hai". Baat wohi hai, NCR ke andar rehti hai isliye punctuality maintain karti hai because ALD HQ ke controllers best priority dete hain kyuki ghar ki train hai na.
Ek baar isko extend kar do Patna ya Gorakhpur and rake transfer to NR DLI division, then we will see kitna Average speed maintain hota hai and kitna punctuality...LOL.