[XT1068] My first thoughts about Android 5.0.2 topic

Well, the 5.0.2 Android Version arrived on my Moto G two days ago (xt1068). I was really hopping that my phone would get a smoother and clean system usage, but i got a huge disappointment while facing with laggy transition, a horrible microstuttered close-in/close-out on menu and main screen and some weird stuff like getting 90% of RAM used when i'm only with whatsapp opened.
So, i'm just in the mood to share this with you guys, and also i would like to see some reply or some "fix" for it. Thanks for reading! :)