I am running Outlook 2013 on Windows 8 and they are supposed to be a match made in heaven. Not so much for me, Outlook 2013 is at best clunky and slow, but I know my pc can handle it, core i3-3240, 8gb of ram with an ssd. So in troubleshooting a ran across this trick to disable animations. It disables animations for all office programs.
Open regedit and browse to: HKEY_CURRENT_USER\Software\Microsoft\Office\15.0\Common
Under Common create a new key:
And name it Graphics
Under the new Graphics key create a new DWORD
Name it DisableAnimation and give it a value of 1.
Double check it is created in: HKEY_CURRENT_USER\Software\Microsoft\Office\15.0\Common\Graphics
You can close regedit and because it is a HKCU change I recommend logging off and on of Windows. After this change I noticed and snappier Outlook environment.