It's so wrong compare Windows with Miui. Windows are a core OS with millions of devices from millions of different manufactures and also with much more functions and resources than Miui. Other than that, the majority of bugs are much more fast fixed than Miui and the quality Control are galaxys away. Just install Fast Rings and you will see a better support than here. That said, Xiaomi devs have much to learn yet. The best way is read this community feedbacks and all will be okay soon. But I dont believe this happening soon... sadly.