OpenGL isn't being recognised, framerate is low during play back

[Andrenichrome]

trying to make changes to preview in preferences but it seems like i can't due to it not recognising OpenGL. Any ideas?

[Szalam]

What version of AE are you using? You should update your OS too. El Capitan 11.0.6 has a LOT of bug fixes - some related to AE since the version you say you're using.

[Dave_LaRonde]

The last version of AE to use Open GL was CS 5.5, aka Version 10.5.  It won't even run on El Capitan.

So you're kinda pissin' into the wind here.........