https://wccftech.com/ios-12-gm-vs-ios-11-4-1-speed-test-comparison-on-older-devices-video/

We know what you’re asking already: is iOS 12 GM faster than Apple’s so-yesterday iOS 11.4.1 firmware for iPhone and iPad? This speed test comparison video will answer that.

Ever since the #Batterygate controversy and Apple slowing down devices to ensure maximum battery life, the company has been under the radar when it comes to new firmware releases and how it treats aging hardware.