Maybe I'm being harsh, but I really don't think that it should be impressive that, on a device of this power, you can zoom in and out of a photoshop file without the UI lagging. Note, btw, that the pixels aren't updating in real time, it takes a little bit for the higher resolution to pop in when she zooms in (unless they're recently in cache). She's literally talking about not having the UI lag. This shouldn't be an applause line, this should be basic functionality in 2018.