Enable Increase Contrast
: Go to Settings -> General -> Accessibility to turn translucent effects and transparencies that although they are very beautiful, considerably slow down the system because they consume a lot of energy. Turn off the update of the background applications
: Go to Settings -> General to turn it off and this will recover much reactivity as active GPS and Data connection and disabling the update of the app also the battery will last longer . Turn Slower
go to Settings -> General -> Accessibility to turn off the effects of motion parallax (3D effect to understand) consume a lot of resources and keep lit sensors and accelerometers. Disable the Automatic
Downloads and go to Settings -> iTunes Store and App Store, and for all the apps you do not need as Music, Apps, Books and updates.