3 ms·They probably just recompiled for arm and optimized any pain points.by perryizgr8 6y agoThey probably just recompiled for arm and optimized any pain points.mavhc 6y agoWonder how much code is shared between Mac OS and iOS, they can't be putting that much effort into Mac OS when it sells 10x less devices than iOS unless it's mostly shared.monocasa 6y agoIt is mostly shared.