Does IOS 7 slow down your iPhone 4S?

Does IOS 7 slow down your iPhone 4S?

The iOS 7 software was designed specifically for the hardware that's faster than your trusty old iPhone 4. If your device is anything older than the most recent generation, it might suddenly slow down, and battery life can suffer. Older devices can experience frustrating performance issues when upgraded to a new OS

If you are not in a rush, wait a few weeks or months until Apple releases the first updated version of iOS 7. The early releases of the operation system can include bugs that should be addressed with subsequent iOS 7 updates. Let other eager people spend the next few weeks finding and reporting these issues so you don't have to deal with them.

It will add a small portion of lag, but the largest negative impact it will have is that it will shorten your battery life.