If your Mac is not compatible with the new macOS High Sierra, it will lead to some problems when using the Mac, like poor performance and running slow. First, Check If Your Mac Is Compatible with High Sierra Should you be among these affected users and wondering why your mac is running slow after High Sierra update, feel free to read this article for proven fixes to resolve this issue. With the promise of increased functionalities and better performance, it is little wonder how droves of Mac users opted for the High Sierra, some of the users' expectations were however cut short as their Mac seemed to run on slow-mo immediately after this update.
