Linux.com - https://www.linux.com/news/linux-mint-19-tara-cinnamon-will-be-faster
Is Linux Mint slow? Hell, no! The operating system is plenty fast. Speed is in the eye of the beholder, however, and the Mint developers apparently thought app-launching seemed slow when using the Cinnamon desktop environment. They didn’t have any proof, but they felt that both Mate and Xfce were faster in this regard.