The short of it is, unless you've got a really bad router, that's probably just as fast as anything else.
The following are the main bottlenecks exist in a network for file transfers in the order of most likely to be limiting you.
- Bad wireless chipsets (some Broadcom) are capped at low speeds like 72mbps so won't give you more than 9MB/s.
- 100mbps network hardware will limit things to a maximum of 12MB/s
- Average 300mbps wifi will stop you going faster than 37MB/s
- Slow hard disks (5400rpm laptop disks for example) will cap out at 40-70MB/s
- Faster 7200rpm disk are then there at about 110MB/s write
- Gigabit hardware and great wifi (802.11AC on dual band) will raise its head now at ~120MB/s
- Average SSDs will cap out at 100-200MB/s
- Good SSDs will cap out at 500-1000MB/s
- 10gbps ethernet will predictably limit you to ~1.2GB/s provided the hardware is good.
Even with a direct (no router, no switch) network, you're limited by your crappiest component. In the laptops, we're talking about cheap 100mbps ethernet adaptors and those energy efficient hard disks.
And while I'm talking about routers and switches, most of these can allow massive throughputs. Many cheaper gigabit routers will allow ~200+MB/s to flow through them. Routing is not an expensive procedure.
If you need to move something fast and often, you're probably going to need to overhaul a lot of hardware.