No, I mean the relative speed of programs with some carefully chosen relation between them. For example, there is a big difference between "relative income of individuals" and "relative income of social groups," even though the latter could be reduced to the former. Whether a comparison of individuals is meaningful as a comparison of groups depends on how the individuals are chosen and aggregated. Clearly not every choice of individuals would make for a meaningful comparison of groups and not every choice of programs makes for a meaningful comparison of languages. The choices made by the game do not seem at all meaningful for the comparison of languages, but if there is some rhyme or reason to the choice, the website doesn't say what it is.
> We can make mystery for ourselves — no one can force us to understand.
True, but when a website chooses to present data in some aggregate way that seems to defy any familiar forms of aggregation and reasoning without so much as stating what the meaning of the presentation is, it is itself mysterious. I agree that it is possible that the comparisons are not worthless, but without any statement of a hypothesis, it is the most reasonable conclusion. I am sure that the authors of the website would agree that if they don't even attempt to say what the meaning of the comparisons is, even in their own minds, it is reasonable to assume it means nothing.