https://twitter.com/javi__andres/status/783974852365586432
1 minute video showing how the game perfoms (in regards to framerate and all). He says that framerate is much more stable than in previous builds, making the game very fluid. He also mentions that the game is quite sharp in that sense, and hopes that the release build is like this.
Oh, and in another tweet, a very short video of Tabata playing the game. Man, it's looking great.