>>105582252All I am saying is you can optimize Python.
That screenshot also had comparisons with other python implementations Jython(Java) and Ironpython(.NET) that have no compatibility with the C-API at all.
PyPy has full compatibility with the Python C-API.
Out of the PyPy project grew CFFI as well as an easier and faster interface to integrate C code. PyPy has been optimizing Python for a very long time now, and it usually can be used as a drop-in replacement. Most applications are I/O bound anyway. Does not matter what code has to wait for your database infinitely longer than the run time of that code. Most people optimize their code without even having a benchmark.
The process of optimizing Python is the same as in any other language and there are countless tools to do that. PyPy is just one of them.