Xbox One Controller Update
The firmware update for the Xbox One controller is designed to improve performance including connection times to the console and stability improvements, you can see more details below.
New features in Xbox One Controller update.
•Quick Connect – previous controller connections to an Xbox One took 4-5 seconds when powering on a controller, now they should occur in ~2 seconds
•Stability improvements – the firmware also provides a number of fixes that address issues submitted by customers and preview participants
You can update your controller for your Xbox One console by press Menu and then going to Settings > Devices and Accessories.