Link Speed = 1000/1000 (Mbps) but files transfer at 3MB/s

Hi

I am transferring files from my Windows Laptop to my Synology NAS.

Ethernet says link speed is 1000/1000(Mbps)

Files transfer very slowly.

Anything to check?

Thanks

P

​

https://preview.redd.it/7rdck223y84c1.png?width=539&format=png&auto=webp&s=ff0cd03abf7015e39e0318771306b07c52f96c91