I don’t think it’s just F-16.net, there seems to be a lot of sites that have been loading real slowly for about a week or so. I suspect some ISPs are having wars a limiting bandwidth, it might have something to do with hacking too. I couldn’t get to AltaVista for 2 days directly, but if I went through a proxy I could get to it. I think some ISPs are trying to block porn and Spam sites and I think they sometimes block the wrong ones, I think the hackers are attacking the ISPs too.
You might try deleting your temporary Internet and windows files and cookies sometimes that helps.
Part of the problem is definitely on our side; the site has been slowing down for the past few weeks. We're looking into it together with our service provider, although we haven't been able to find an obvious problem.