I'm on Cossacks and have been seeing load speed issues for several days now. The last day or two I have been having issues connecting to my site at all. I have been using a site monitoring service which is testing my site at regular intervals from servers in Seattle, Chicago and London and none of these test servers are showing any consistency on page load time or even being able to access my site at all.
I filed a support ticket and the best answer I got back was that these issues may be related to the server upgrades. I will accept that excuse for now just because I take comfort in having documented confirmation that these issues are with x10 and not something with my own personal connection and test. (AKA I know I am not going crazy. )
The x10 people have a lot of work on their plates and I think the magnatude of the upgrades caught them a little off hand. I am sure they are working very hard to see these issues are corrected as soon as possible. I'd recommend giving them a few more days to work through the mountain of issues I am sure they have. Remember, the people doing support and doind the upgrades want to see these things corrected quickly even more then you and I.
AS a side note: I am actually glad the server has been down for a couple of hours. I suggests to me that somebody is working on it. I don't know that for sure, but I will think positively.