The fastest request is the one that never reaches a server. Static hoisting is the practice of moving as much work as possible out of the request path and into build time, where it happens once instead of once per visitor.
Once output is static, it can be replicated to the edge, cached indefinitely, and served with near-zero variance. Predictability matters more than peak speed: a page that is always fast beats a page that is sometimes faster.
The interesting engineering problem is not whether to hoist, but how much dynamism you can preserve while doing it — personalization, freshness, and authorization all want to pull work back to the request.