“RxAndroid meets VSYNC rubber” — Icon used with permission from Ray Wenderlich [https://www.raywenderlich.com/170233/reactive-programming-rxandroid-kotlin-introduction] RxAndroid 2.1.0 has a new API AndroidSchedulers#from(Looper looper, boolean async) This new async parameter affects Android APIs 16 and newer, and can significantly improve UI performance when set to