You contend that you'll outperform low carb persons. Again, anecdotal. If we're accepting such claims, then I, as low carb, contend that I have no problem competing with high-carb persons, high intensity or not.

Time will tell, as low carb enthusiasts either gain or decline in the population. If they gain, then more athletes are likely to experiment with low carb. Then the issue of performance will become more defined.