I just purchased version 2019 last week. It's been slow and laggy on 2 different computers. I first tried to run it using Parallels and Windows 10 on an iMac that is setup with quad-core i7s and 32gb of ram. It barely limps along. The second computer is a gaming PC that's about a year old that is setup with an AMD Ryzen 5 2400 with a Radeon Vega 3.6 ghz video card and 8gb of ram (I really have no idea what this all means necessarily...just passing along the specs). It runs much better here than parallels...but still slow and laggy when editing even basic things (adding basic fade transition or adding annotations and text).