ALWAYS A DELAY OR ISSUE...

Hi, How is this possibel that the first flight of the morning is delayed? I travel alot and fly around often and whenever I fly Khulula there is either a delay, overbooking or some issue with the flight inbound. In my industry time is really importand and to fly out to Durban or Jhb for a day is crucial for the flight to be on time. Customers dont want to hear why you are late or what happended to you...they dont care! So please explain to me why all the issues in general? Non of the other airlines have these issues and I never get delayed or overbooked on them...ONLY AT KHULULA!!! Regards, Adriaan du Plessis