So me and my sister just got new iPhones (4) for Verizon. I noticed though that my iPhone has laggier animations while my sister's is smooth. Example of this is when you open the "utilities" folder. Mine will lag while closing it while my sister's won't. We are both on 4.2.8 (latest). All apps were closed prior to testing. What's going on here? I feel like my iPhone has some kind of OS bug. Any fixes? WEIRD ISSUE: I FIGURED OUT WHAT'S GOING ON. PLEASE TEST THIS FOR ME: Put a "folder" on the top of the screen (ex. "Utilities"). Now open it. No lag. Now, take the folder and switch it to the bottom of the screen. Boom, lag. Weird, huh?