How to speed up SSH login?

Whenever I login to my Centos Server using SSH, it takes about 6 seconds for me to get the prompt for password, however when I login to my web hosting server it takes about 1 second. What can I do to speed this up?

If you run a lot of terminal tabs or scripts that all need to make OpenSSH connections to the same server, you can speed them all up with multiplexing: making the first one act as the master and letting the others share its TCP connection to the server.

If you don't already have a config file in the .ssh directory in your home directory, create it with permissions 600: readable and writeable only by you.
Speed up SSH 

Step 1 -Add below to /etc/ssh/sshd_config

The number one reason I've seen for this is a configuration option in SSHD UseDNS this option (enabled by default) causes the server to perform DNS resolution on the incoming requests. A time consuming operation. I've seen logins go from one minute plus waiting for password 

#  vi /etc/ssh/sshd_config

UseDNS no

Step 2- Setting up ssh client with compression 

#  vi /etc/ssh/ssh_config

Host *
Ciphers arcfour,blowfish-cbc
Compression yes
AddressFamily inet
ControlMaster auto
ControlPath ~/.ssh/socket-%r@%h:%p

Save and exit !
Step 3- Restart the SSH daemon with service sshd restart

You should see an improvement next time you connect.