I say there's an equal chance, and it's equally easy to fix, but a high level language provides fewer distractions and temptations to work on small optimization

I say there's an equal chance, and it's equally easy to fix, but a high level language provides fewer distractions and temptations to work on small optimizations which don't matter. Getting in the weeds with the details is how you lose sight of the big picture. And allocate your time poorly.