To remove dock auto-hiding animation latency immediately, key in the following in Terminal:
defaults write com.apple.dock autohide-time-modifier -int 0;killall Dock
To restore it, key in the following:
defaults delete com.apple.dock autohide-time-modifier;killall Dock
To fix the hanging problem of Linksys E4200 router when working with Apple TV’s mirror function on iPad 2 or newer:
1) Log in to the router
2) Disable CTF under Management of Administration
That’s all needed to fix the hanging problem associated with Apple TV mirror function.