I don't think it's true to say that Python's core developers are uninterested in performance. Speeding up Python is a hard problem. He mentions PyPy but even that has only managed modest performance gains in some areas (and not without tradeoffs). He suggests JavaScript as a comparison but doesn't elaborate on how they're comparable beyond the superficial (they're both dynamic scripting languages).
I get that he's frustrated with Python's performance but it would be really interesting to hear from someone who knows the technology involved rather than simple speculation.
I get that he's frustrated with Python's performance but it would be really interesting to hear from someone who knows the technology involved rather than simple speculation.