Python is gonna be slower than Java and other compiled languages. Thats the price you pay for fast development. While most of your speed is going to be bottlenecked by network, there is still value in getting some optimizations to being able to handle more load.
Fast API is basically async implementation of your standard API coding on top of uvicorn (which is a web server), which is built on uvloop, which is a faster event loop.
Fast API is basically async implementation of your standard API coding on top of uvicorn (which is a web server), which is built on uvloop, which is a faster event loop.