Suggest against making drones faster due to potential shenanigans in low ranked games where players don't cover air well:
- large build power proxy bases
- fast reclaim of dead teammate bases
- fast reclaim of enemy bases
- fast scouting with drones
I'm pretty sure your "fast" and his "fast" drones are quite different in speed if you think it would become possible to do fast scouting with drones. Drones are immensely slow right now and even doubling their speed would not make them do any of the things you mentioned.
Also considering the fact that most low rated players tend to overbuild static defenses and that drones are still pretty expensive it would never be possible for them to reclaim a valuable base before dying cost efficiently. A single random t1 aa will kill 5k mass worth of drones before they can do anything.