Apple's newest operating system, iOS 12, is installed on just over 10 percent of devices 48 hours after it launched according to data collected by analytics company Mixpanel. The data suggests customers are adopting iOS 12 at a slower rate than iOS 11 and iOS 10.

Last year, iOS 11 was installed on 10 percent of devices just 24 hours after launching, and in 2016, iOS 10 was installed on 14.45 percent of devices within 24 hours.

Customers may be reluctant to adopt a new operating system after all of the bugs and issues that were seen with iOS 11 software updates, but Apple made an effort to focus on the underlying code of iOS 12 and thus far, the update has been stable.

As should be no surprise, MacRumors readers are early iOS 12 adopters. Over 80 percent of readers queried so far have installed iOS 12 just two days after it launched. Follow us on Twitter and vote to let us know if you've upgraded to iOS 12.

Did you install iOS 12 yet? — MacRumors.com (@MacRumors) September 19, 2018

iOS 12 is an update that brings significant speed and performance improvements to older devices, so most customers installing the software should see notable speed improvements over iOS 11 after updating.

On the iPhone 6 Plus, for example, apps launch up to 40 percent faster, while the keyboard can appear up to 50 percent faster. Opening the camera on the Lock screen to take a photo can be done 70 percent faster.

Apple has made animations smoother and more responsive across the operating system, so accessing Control Center, scrolling in apps, or swiping up when multitasking feels more fluid.

iOS 12 also includes optimizations for when the operating system is under load. Apps launch up to twice as fast under a heavy load, as does the Share Sheet.

With iOS 12 installed on 10 percent of devices, iOS 11 adoption has dipped to 82 percent and will continue to fall as more people adopt iOS 12. Installation could jump this weekend as some people wait until they have a free block of time to complete a major software update.

iOS 12 is a free download that's available for the iPhone 5s and later, iPad mini 2 and later, and the 6th-generation iPod touch. In addition to noticeable and useful speed and performance improvements, the update introduces Screen Time for monitoring device usage, Memoji and new Animoji, ARKit 2.0, and a new Shortcuts app for creating customized automations. For more on what's new in iOS 12, make sure to check out our roundup.