I really like the noise that is created around Magento 2 and i want to install it on my website. Actually i already installed it and i ran some speed test. Compared with the other sites that my competition use (prestashop 1.4 and opencart 1.5) they all all performing better! Now that is so annoying. My store has a lot of little products and to be competitive on the market i have to have a rocket speed site. My costumers don't even go to the product page, they want to see only the category page.
My hosting provider optimized the site and is going very good now, but still slower than the competition sites. An btw, my site is the LUMA demo with sample product data. Maybe if i populate it with more products it will be more difficult to handle.
Strange is that the newer an ecommerce platform is, the slower is runs.