What can cause slow ssh session? [closed]

I ssh on remote host but terminal performance is poor. Symbols I am typing are not shown immediately, but with some delay. Sometimes two symbols are shown at one time after delay.


High latency is another cause of poor ssh performance. I highly recommend using mtr as a better replacement for traceroute. It should be able to give you some idea of where your network problems might occur.


Disabling X11 forwarding if you don't need it (ssh -x) and enabling compression (ssh -C) can also speed up your session.


I can think of two possible causes:

  1. Packet loss on the connection
  2. High load on the server.