All the stations like Shahjahanpur or Bareily already have Lucknow Mail as a stoppage; so there was no point giving it stoppage there. There was a person here to travelled in it here and said that there was barely any activity at MB in terms of boarding/deboarding. I don't think it would have overtaken the Lucknow Mail, if you mean by physically overtaking it at some station; but yeah, time taken to cover the distance could have been reduced by some amount sure.