Hi guys ! so I needed to restore my iPhone 4s (ios 6.1) but I didn't wanna lose my jailbreak so I used semi-restore, but after everything went well and while using my device I noticed that when opening the music app or the videos app, even when trying to open a pic iin the camera roll the screen freezes for about 4sec before it displays the photos or the music list ... (I already tried ilex rat option 12 after that but it didn't solve anything) so is there any way I can get rid of these problems ? I don't mind erasing everything on my iphone in order to solve the problem since I already backed them up !

Thanks for your help