Build with opt-level 3

Editor assessment

Build with opt-level 3 states the optimization, and the body supplies the measurement: roughly a twenty-five percent improvement, from about 1950 to 1500 nanoseconds per call. A perf message with a concrete before-and-after number teaches exactly what such commits should. The url scope and perf type are accurate, and the terseness is appropriate since the number is the payload. Clean hygiene. Publishable, near exemplar. The nanosecond before-and-after is the entire argument, and the subject names the optimization that produced it.