https://wccftech.com/heres-how-ios-12-performance-have-improved-from-beta-1-to-beta-8-in-new-speed-test-video/

The first beta of iOS 12 was released almost three months ago. Since then, the company has been releasing new beta builds for the forthcoming upgrade in order to make it more stable. The final build of the operating system is expected to arrive sometime in September, so it’s almost on the verge of being announced. Now, a new speed test has been conducted by iAppleBytes on older iPhone models running iOS 12 beta 1 against iOS 12 beta 8. So let’s dive in to see how does iOS 12’s performance stacks up against its first and latest beta.

If you have been keeping note of the new beta updates, you would have noticed a jump in performance. Initially, iOS 12 showed noticeable improvement in terms of performance and since then, there have been seven more beta releases. So the question is to what extent iOS 12’s performance has improved from beta 1 to beta 8 on the iPhone.