C++ with well-optimized libraries should always outperform Python with well-optimized libraries, right? They should be ~identical in the highly optimized inner

C++ with well-optimized libraries should always outperform Python with well-optimized libraries, right? They should be ~identical in the highly optimized inner loops, but Python has more overhead. But naive hand-written C++ could easily perform worse than something like Numpy. (I've only tested this once, and my naive hand-written C++ was still twice as fast as Numpy, but that was only on one specific task.)