Performance is good now on new M and A series devices. Just hanging issue still not fully gone. Sometime device stops responding, if you cut a call or open some app it hangs for a while and you hit back button 4-5 times then it vibrates all of them at once. Samsung budget phones have come long way only because of Mi, Oppo and Vivo like brands. I wish to see them providing Mi like processors on 15k budget devices. But i doubt that will ever happen since Samsung is already pretty much doing compromises on their costs by making somewhat usable hardware and adding all sensors which they never gave before.