The asyncio library included with Python gives you the tools to use async for processing disk ... main(): print ("Waiting 5 seconds. ") for _ in range(5): await asyncio.sleep(1) print ...

by using Python built-ins instead of handwritten code — you could get a measurable performance improvement. def f1(): for n in range(100): pass def f2(): n=0 while n<100: n+=1 if __name__ ...