I made an animation in Cycles (about 1 minute long) using viewport render option (Render-->OpenGL Render Animation). There were some simple objects like hearts (with basic diffuse colour) and planes with a photo textures. It rendered in about 8 minutes.
Then I simplifed the scene: reduced the vertex count, and enabled the simplify option. The rendertime was about 2 minutes this time.
My goal is to render the animation in about 1 minute. Do you know any tricks to reduce the rendertime a bit more? Are there some settings I missed?