DNS on local network can impact SSH connection:
vim /etc/ssh/sshd_config
# find and edit/add line:
UseDNS noPowersave enabled on WIFI could also impact SSH speed:
sudo vim /etc/NetworkManager/conf.d/default-wifi-powersave-on.conf
#change 3 to 2How to fix slow network using SSH to Linux Ubuntu on LAN network
March 28, 2021