I am currently working with a PHP-based shopping cart on a client’s website. The cart, as a whole, is fantastic. It’s fully featured with load of options and configuration modules. It supports nearly every conceivable payment option and has built-in controls for defining a site’s appearance.
The problem with it is, it’s slow. Depending on the web server’s load, I have measured it taking upwards of 1.6 minutes to render a single page inside the cart. On off-peak hours, the pages render on average of 4 seconds each.
Upon investigation, I believe I’ve found the culprit.