Why is this Bloody Blog Slow and a Bit Broken?

I’m aware that this riveting blog is creaking along at a very slow pace, both the front-end and the back-end of the site. Unfortunately, this is sub-optimal (not least as it stops Google Adsense helping fund my pub visits which are so important to the local community) for numerous reasons and I don’t have a timescale for any fix either. Hopefully it won’t be too long coming, then I can return to continue writing my irrelevant piffle.