Async Doesn't Necessarily Mean Faster

One of the most common misconceptions about async programming is that it’s about improving performance. A lot of people think that using async makes their code run faster. However…

Async does not necessarily make the operation itself any faster. #

Your API call might take exactly the same amount of time to complete whether you call it synchronously or asynchronously. What async changes is what your application can do while it waits. Instead of being blocked by that wait, it can potentially make progress on other work.