As some (or most ) of you are aware the website has been fairly slow recently, I've spent the last day investigating and have made some improvements to the images saved and also with some changes with our hosting company.
To help investigate further or to investigate other issues can you please try the following and report back to me using the comments section below.
if using Chrome try Internet Explorer , I've noticed Chrome takes a long time to load the initial page 4-6 seconds whereas IE loads almost immediately.
If your logging in by default, try browsing the website without logging in, when logged in the site is expecting you to create/upload etc so its working harder to show you a new page rather than a cached version, so every page and every image is being downloaded.
We may see some improvements over the next 24 hours or so as well