iOS 7.0.1 actually improves things by shortening the animation durations, thereby easing some of the burden on the processor. It also smoothed out most of the jerkiness in the UI which was present when opening apps or pulling up the control center window shade.
Launch times of applications were also improved for apps like Safari, Camera and Mail.
With that said there are some things that
iOS 7.1 still can’t overcome due to the A4 processor and that is why the
following features are absent from the iPhone 4.
- 3D Flyover or turn-by-turn navigation in Maps
- Panorama mode or Live filters in the Camera app (filters can still be applied in the Photos app after the picture has been taken)
- AirPlay Mirroring
- Siri
- AirDrop
- Graphical effects such as the translucency effects throughout the OS, live wallpapers, and the parallax effect of the Home screen