hi I have a iMac 27'' MacOS Sierra
I am using after effect cc 2015 if I start to do with audio sone of the project it won't work taking long time to move file also render so slow sometime taking long ours to finished I don't don't know how to install cpu CUDA but AMD Redeon. is not available to install CUDA
I have attached my iMac specifications please let me how I CAN FIX MY PROBLEM
Make sure your composition is set to use the classic renderer and not the ray-traced renderer.
I would highly recommend updating both your operating system and After Effects. Many bugs have been fixed in both.
Are you still facing this problem? If not, let us know how you solved it. If so, please let us know so we can assist you further.