Well, the notorious full screen animation has been with OS X for quite some while now. There are many discussions around it yet no solution seems to be found.
Here are two for example:
http://forums.macrumors.com/showthread.php?t=1691359 http://www.reddit.com/r/apple/comments/1plzmq/is_there_a_way_to_speed_up_or_skip_fullscreen/
Most popular "solutions" are two:
Terminal
Type " defaults write NSGlobalDomain NSAutomaticWindowAnimationsEnabled -bool NO"
Hit enter
Close all applications before you do this to make sure the setting propagates. Any app running when you make this change will need to be restarted for the changes to take effect.
In reality, NSAutomaticWindowAnimationsEnabled doesn't effect OS X 10.9 at all. Nothing will change however you like to set it.
There is a app called TotalSpace (or Spaces) that I know is able to disable some transitional animations.
In reality, Total Space can disable some animation switching between screens, but when you play a video on, say Yahoo Screen, the animation from a small video to a full screen video still remains - and in fact that is the actually annoying animation (takes about 0.5 second to complete therefore breaks the video experience).
I am shocked that there is still no solution to this problem! Perhaps someone can discover a hack around this? If you do, I am happy to make a free OSX app to enable this option for everybody.