Originally Posted by fdorr
Mine after factory reset performs like that on the stock launcher, in nova or evie performs lag free
Again, I had a U.S. version, a pink UK version that got returned, and my current UK phone. I used the two that are gone for two weeks each and all three phones were configured identically with over 100 apps and four push e-mail accounts. None of them lagged or stuttered in app openings, transitions, or scrolling. I see you're in Latin America so maybe it's a regional issue.