In case it’s escaped your attention, adwords is now telling you if you have issues with speed of your landing page. Furthermore, come mid-June the response speed of your landing page is to be factored in to the quality score.
It’s simple enough to see how adwords is currently rating your landing page speed …just hover over the magnifying glass next to a keyword within an ad group and then select the details and recommendations link for the quality score info.
If you’re doing some direct to merchant PPC then there isn’t much you can personally do to improve the landing page speed of course. But with your own pages you may want to tidy up your code, use CSS, compress large images and the like. If you’re using wordpress then much of this taken care for you already assuming your chosen theme is half decent. Your choice of web host is possibly the weakest link in the chain – you tend to get what you pay for.
Can anyone recommend a good host for wordpress (allowing custom permalinks) by the way? Dreamhost offer a great deal but they’ve had some server issues lately.