Chapter 69: Particle Preferences
Always Show Particles as Dots: If this preference is enabled, the particles will always be displayed as dots in the OpenGL preview mode. This will make the playback speed faster when running a heavy scene.
Horizontal Resolution of Image Fracture Input: This is the size in pixels of the proxy bitmap image rendered in OpenGL when using the Image Fracture particle. A smaller image size will increase the playback speed when running a heavy scene.