If I remember correctly there is a command line option. I do it many year ago on my Mac, and I can switch space without any delay / animation Edit : You're rig

If I remember correctly there is a command line option. I do it many year ago on my Mac, and I can switch space without any delay / animation Edit : You're right, there is some Fade transition between space, but it is not 1000 ms. defaults write com.apple.dock expose-animation-duration -int 1; killall Dock