Other than the Maps issues, the App Store in iOS 6 is probably the next most talked about change of the latest iOS system software. Though it’s undoubtedly a better user experience in a lot of ways, one area that really suffers is speed, and a lot of users are experiencing very sluggish behavior in the App Store whether it’s lag while trying to navigate around apps, browse the Top Charts, or just review and download from their purchase history. Most frustratingly, the App Store slowness can even impact the newest iOS devices, including the iPhone 5 and iPad 3rd gen.

Some people are blaming HTML5 and the heavy eyecandy and animations, but strangely, the sluggishness seems to come and go at random, and we think we’ve finally discovered the reason. Here’s how to fix it:

Open Settings, tap on “Privacy”, then tap on “Location Services”

Scroll to the bottom of the screen to find and tap on “System Services”

Look for “Genius for Apps” and flip the switch to OFF

For iOS 6 devices that have experienced the slow App Store problems, that “Genius for Apps” setting almost always has a grey or purple icon next to it, indicating that it’s been using location services recently. Turning this feature OFF seems to end the random speed issues of the App Store completely, presumably because the Genius feature is no longer doing whatever it does in the background while you navigate and use the store.

With App Genius off, double-tap the Home button, then tap and hold on the App Store icon to quit it. Relaunch App Store, and everything should be much faster again.