In the simplest case, you take an async function, remove `async` and `await` keywords, and as a result you get a normal function which you can call and get a result without awaiting, which has better and more predictable performance, and a straightforward stack trace (and a simpler language syntax and semantics). All upsides, no downsides.

Probably you can think of a more complex example where it’s not that straightforward, please link code that you have in mind, we can see how with cheap threads it could be made better.