Faster alternative to NSImage draw/composite?

I have read through Apple's drawing optimization guide and have been searching for a way of speeding these operations up, they are unacceptably slow. I have several 72dpi PNG image files (about 1024x768 each) which I need to draw repeatedly into a standard NSView subclass over time. I would like

NSTextView embedded audio/video not loading

Have searched the archive and Googled for the solution to this, was hoping someone could point me in the right direction. I have an NSTextView which allows me to drag movies and audio into it, and they display and play perfectly. After saving and reloading the data, however, the media only shows

Non-retained NSImages still available?

I'm sorry for asking a memory management question but I was hoping someone could help me understand this situation. I have a series of NSImages I place in an array (subclass instance variable) when a custom NSView is init'd: initWithFrame: imgArray[x] = [NSImage imageNamed:@foo.jpg];