You are doing it wrong then, asyncio is never designed for and not useful for CPU bound tasks. Use multiprocessing for CPU bound tasks. In our system before asyncio, sqlalchemy commits and httpx requests are blocking The API calls and it takes 21 seconds every time, now only 1.2 seconds. We had optimized by making every IO (db.commit(),httpx.post) to run inside asyncio.create_task.

So they are operating outside of the request without slowing it down.

We had used aync since 2014 ( twisted, tornado), and officially having async await in python starting 3.7 was the best thing happened to python.