Apple is still supporting the iPhone 4s when it comes to new software, despite the fact that it is now outdated by several generations. But while iOS 8 is technically usable by iPhone 4s owners, just how fast can it run compared to iOS 7?

Finding the answer to this question is the basis of a new video by YouTube user kabriolett, who staged a speed comparison between an iPhone 4s running iOS 7.1.2 and one running iOS 8.0.2.

The results are surprising.

Apple has promised to roll out a new iOS 8 update in the “next few days” that will fix the issues plaguing iPhone 6 and iPhone 6 Plus users who updated to iOS 8.0.1. In the meantime, users are being advised to downgrade to the initial iOS 8 release that came pre-installed on their devices.