The whole point of uploading a file this way is that it is more data efficient and faster in my use case. That means that slowness is a bug; inefficiency is a

The whole point of uploading a file this way is that it is more data efficient and faster in my use case. That means that slowness is a bug; inefficiency is a bug. For what reason would you put bugs in your code on purpose? We also probably have different ideas about how much "much" is.