SInce the other responder had errors in their own correction, I'm going to post so you don't pick up wrong information.
Topic: "Is italki only slow for me?" ("slow only..." works, but it's sort of weird)
Paragraph: "This is a great site, but it is so sloooow. It isn't related to my internet connection or speed! So what's the problem? This makes me sad whenever I visit."
Their answer, however, was somewhat accurate. It is quite possible that it's simply due to your geographical location. However, italki has been around for a pretty long time; I'd reckon that the other reason (because it's frequently slow for me as well) is that they have a lot of server load due to the high number of users and a lot of recent site changes. Like Chris said, you'll just have to give them a bit of time.
I personally recommend just finding language exchange partners and talking to them on Skype; that way you don't have to worry about this site being slow or not!
