In vue you have forma free reactive data without using shouldcomponentupate. Components are updated when data change and only for the data they binding.
You have also local context while react have a global context.
Props are reactive ... And many others feature
This actually scares me because I have extensive experience in knockoutjs. It also used a reactive system. The problem was once the UI became sufficiently complicated performance would suffer greatly. If you had a lot of computed properties changing a piece of data could result in a lot of UI thrashing as each of these are recomputed. I'm not sure how Vue solves this problem, or even if it does but overall the architecture was inadequate.
