I know what you mean, but from a writer's perspective, page creation is all about the time it takes her to create a page, which is, in general, several orders of magnitude more than 5 milliseconds.
The product looks quite good at first sight. I couldn't find pricing information though, which would be a very important factor in a decision to move to your platform.
What matters for the visitor is the total load time, including:
* latency (depends on the location of your server and the visitor, whether you're serving off a CDN or a single datacenter) * download time (depends on the size of the HTML/JS/CSS you generate, i.e. your default theme) * rendering time (depends on how heavy your default theme is)
Bottom line, you can just say it's blazing fast and your users will see by themselves (and it is very fast, indeed).