iPhone ui issues ?

Very puzzling I did iPhone recovery . Erased whole iPhone and reinstalled iOS . I go to the App Store and it appeared different then it has been for a year now .
The main page scrolls up and I see a categories tab at the bottom . well then my phone acts up . Freezes then the App Store reverts to how it's been for a year now .
the App Store on my iPhone looks like how it is on my iPad . On main page items scroll right to left . And is real laggy . but for a brief few minutes after my reset it was awesome . Items on main page scroll up and I see a categories tab and it looks like the ui is meant for the iPhone smooth as butter again .
Anyone know what's going on with my phone and how to get that ui back I had for a brief time ?? I recently bought a Samsung phone . 1 reason is the horrible App Store ui I have . But if that is a mistake and I can revert it back somehow I may give me wife my galaxy phone and stay again with my iPhone .

 

iPhone 4 iOS 6.1.2
it's not just the look that changed . This new ui is horrible . very laggy and not good for the iPhone . I hate it . Especially how if I look up an app . It scrolls through the apps 1 at a time .
that short time when my App Store was different . It was awesome again . everything scrolled up and down again . Searches showed up I believe 5 apps at a time . When I got to the bottom I could load up 25 more .
With the interface I have now there are options missing that are necessary . and it looks like it does on my iPad right now with screen scrolling left and right . I was hopeing it was a mistake on my phone . I hate it so bad .