Investigate Quart Performance

[cirospaciari]

In the last release, I fixed some bugs that allow Quart to run but are not performing well.
Just creating this Issue to not forgot about that.

All tested ASGI frameworks have a performance boost over uvicorn when using socketify on CPython, the only exception is Quart. Quart had performance regression and is only faster when using PyPy.

This can indicate bottlenecks or bugs.

Here is a list of frameworks that seems to be running well on the socketify ASGI server:

• Falcon
• FastAPI
• Emmett
• Blacksheep
• Quart

PS: Quart is officially the new Flask now, so we need to give some attention to it.
See https://palletsprojects.com/blog/quart-pallets/