In Mountain Chen IS Mountain Chen they said the site is slow. Now. WWW used to mean "World Wide Wait" so there's a certain amount of we-can-only-improve-this-so-much about the problem. Especially when you think of the complexity of the system between you and the web server visforvoltage.net is housed on.
In any case I'm interested in more data on what you think "the site is slow" means, or if you think the site is sufficiently fast. We're always considering whether it's worthwhile to upgrade to a better server and so far the current arrangement has seemed sufficient.
The data I have comes from the Google Webmaster Tools sitemap service. This site submits a sitemap to google and other search engines, and this helps them know what pages exist on the site, when they've changed, etc, so the search engines can better index the pages on the site. Google has the best reporting based on the sitemap data, and one bit is the "Time spent downloading a page (in milliseconds)" while googlebot is crawling the site.
This download speed is the same for all the websites I have hosted on this server. The speeds reported by Google for visforvoltage.org are: maximum: 2005 average: 1150 minimum: 730 (in milliseconds)
The only comparison I have is from hosting two sites on my dreamhost account. For visforvoltage.net the site is hosted on a "virtual private server" whereas my dreamhost account is a typical shared hosting account. The same time spent downloading pages for davidherron.com is: maximum: 17614 average: 5338 minimum: 1905
Clearly "slow" is relative based on what the server specifics are. Dreamhost shares their servers over more users than does the hosting provider I use for visforvoltage.net and the other sites I'm hosting.
This measure, "Time spent downloading a page", is probably directly related to your perception of "the site is slow". It's well known in computer user interface design that slow response after a user action triggers the "slow" statement. The other thing I notice in the data is the trend in the chart Google draws is show the site is responding more slowly today than it was in June. Clearly visforvoltage.org is getting busier and busier all the time. I'm having trouble keeping up with this site. That's got to translate to heavier load on the server.