Are speed tests (e.g. speed.cloudflare.com) on both laptop also giving similar number?
If speed test result is much faster, the bottleneck could be the CPU incapable of encrypting/decrypting data fast enough using the default encryption method used by SCP/rsync. In that case, try unencrypted file transfer instead. Maybe just serve the file temporarily with `python -m http.server`
Then the issue might be in your wireless access point, maybe one of these:
- there is a max speed limit rule added to your access point to limit download/upload speed on one of your laptop. Remove them if you have access to the access point control panel, or use another access point
- the access point is overloaded, too many clients connected and its cpu can't keep up. Use another access point
- you are using 2.4Ghz band and it has a lot of interference in your area, try switching to 5Ghz or 6Ghz band if possible
If speed test result is much faster, the bottleneck could be the CPU incapable of encrypting/decrypting data fast enough using the default encryption method used by SCP/rsync. In that case, try unencrypted file transfer instead. Maybe just serve the file temporarily with `python -m http.server`