WiFi
WiFi operates at the speed of electromagnetic radiation, which is to say, the speed of light itself. Data packets traverse from router to device in mere nanoseconds, a velocity so incomprehensible that humans have taken to complaining when a webpage takes more than three seconds to load. This represents a peculiar form of ingratitude.
Modern WiFi 6E standards achieve throughputs exceeding 9.6 gigabits per second, sufficient to transmit the complete works of Shakespeare approximately 47,000 times per second. The technology operates so quickly that its primary limitation is human impatience rather than physics.
Rocket
Rockets achieve velocities that would have seemed like sorcery to earlier generations. The Space Shuttle reached speeds of 28,000 kilometres per hour, whilst interplanetary probes exceed 60,000 km/h. The Parker Solar Probe currently holds the speed record at 692,000 km/h, a figure that reduces most human speed achievements to embarrassing footnotes.
Yet these speeds require enormous quantities of fuel and careful trajectory planning. A rocket cannot simply decide to go faster because its occupants are running late. The acceleration process itself would reduce an impatient human to an unpleasant paste.