Can anyone with the new iPhone 5s say whether the new CPU in the iPhone 5s, which Apple claims is twice as fast as the one in the iPhone 5, makes any noticeable difference in speed when using Pleco (e.g., faster response when doing searches, esp. with other apps running in the background)? Not that Pleco is slow on the iPhone 5, but does it seem noticeable more responsive with the new faster CPU, or is the difference not very noticeable?