The Apple App Store approval wait times are there to ensure that apps are “…reliable, perform as expected, and are free of offensive material. We review every app submitted based on a set of technical, content, and design criteria.” Apple gets hundreds if not thousands of app updates every day and it takes time to make sure that every single app that is submitted follows their strict guidelines. Those guidelines are there for your safety and to ensure a great experience on your iOS device. Rest assured knowing that “On average, 50% of apps are reviewed in 24 hours and over 90% are reviewed in 48 hours.”.
We iOS users will be very happy very soon.
EDIT: Forgot to cite my source 😊 https://developer.apple.com/support/app-review/