Remove shift key augmentation for Mission Control animation
You can disable the keyboard shortcuts for slow-motion effects by following these instructions:


Open Terminal.
Open the plist file in your user's library preferences folder that contains the setting by typing open ~/Library/Preferences/com.apple.symbolichotkeys.plist and hit return.
A window similar to this will open in Xcode:





For items 34, 35, and 37, set enabled to NO.
Close the file, click Save if prompted, and restart your system.
Enjoy.


Note: 34 and 35 may not be present in the plist if you have never opened the Mission Control preferences pane and changed the "Mission Control" or "Application windows" settings. If 37 isn't present either, simply add it yourself.

This process has been tested with:


OS X Yosemite
OS X El Capitan
macOS Sierra


Source


MacWorld
In Translation