Originally Posted by kenoshi
Try disabling reverse DNS lookups and see if that helps.
Uncomment "UseDNS" in sshd_config and set it to no.
Ok, the second line is how to do what you told me to do in the first line.
I will try this later, thanks. I hope it works because I am quite certain someone is going to mention it to me if I don't fix it before Monday.
It's really bad. Anytime I go away from the putty window and come back, there is a 3 to 5 second lag before it starts responding again.