[steveklabnik]

Just because there may have been a regression on a particular benchmark doesn't mean that Rust is not generally fast.

[igouy]

imo it would be helpful to you all, to set a clear expectation that performance will be a priority in some future version but has not been so far. (As that's what you seem to have just said.)

That's all. No reference to "a particular benchmark", or whatever you take "generally fast" to mean.