As an app developer I have been guilty of this in the past as well. I really try to make interfaces instantaneous nowadays so you can keep hammering away while

As an app developer I have been guilty of this in the past as well. I really try to make interfaces instantaneous nowadays so you can keep hammering away while in the background things like fetching and saving happen. Things like naive saving (always continue immediately assuming inserting or updating really happened), command queues and aggressive preloading can make applications really quick again despite they're just an interface for an API.