NAS EXTREMELY slow

Before the quick restore, I could transfer files at 20MB/s directly connected computer to NAS by ethernet cable, now, after quick restore, it’s only 3MB/s.

What did happened?

I’ve disconnected Wifi, and it went up to 15MB/s, I reconnected to Wifi and it kept going up, for some reason.

Weird, but the solution was ‘reconnect to wifi’.