How can you say it is slow? It isn't out yet. When it will come out it will basically be a high-end Android device that can be used as an Ubuntu desktop (all current HDMI adapters require power, so it won't drain the battery when you are using it as a desktop). Perhaps this is a concern to you, but it won't be much harder to keep charged then it is to keep a current smartphone charged while using it. And if you really are concerned, buy an external charger / car adapter.