Thanks for enabling debug for us. I am also in the Uk and site performance didn't seem to be too bad if i'm honest
You may well find a definitive answer to your question here
on a side note. You can see your debug information here
You host is using PHP version version 5.3 and the following deprecated security functionality. (you can see the debug information here (
PHP Magic Quotes gpc : Yes (bad) PHP User : Posix functions are disabled on this host!
It might be beneficial to contact your host and ask them to remove the deprecated functionality or upgrade to PHP version 5.4.