Speed up magento e-commerce store

I have a magento e-commerce store, which has a template applied to it. This template is causing magento to run very slowly sometimes See here: [login to view URL] - it usually runs slow when you add something to the cart and go to checkout - the process is very slow. I already run it through cloudflare so that optimizes it already and it's still slow Please track down what is causing it to run slow and fix it. Best price will win and you must be able to start instantly, so leave a message!