There's no nefarious plot in play here.
Just wipe your phone and restore the OS. Reinstall all your apps, and if it happens again then just repeat the process without including your most recently purchased app... rinse and repeat until you find the app that is hooking into your text input and causing lag in your keystrokes.
It's a pain in the ass, but with 150,000 apps to choose from, there's bound to be some conflicts once in awhile.
|