Consider factoring your code into a benchmark and submitting it to the PyPy team. They have an awesome attitude toward this. From http://pypy.org/performance.html:

We generally consider things that are slower on PyPy than CPython to be bugs of PyPy. If you find some issue that is not documented here, please report it to our [bug tracker](https://bugs.pypy.org/) for investigation.

(bug tracker has broken SSL cert)