Yeah, I have the same issues. I want to create a rather large halftone/raster file and it is murdering slow... Don't know if there's anything to about it... If anybody knows of any tricks, please let me know. Thanks!

Thanks for the reply Simon. Sorry did not mean to bitch about the program/plug-in. I appreciate the work that has been put in. I was just hoping I was doing something wrong, or there was some kind of tip/trick.

It mainly depends on the resolution of the image that you're rastering.

An image of 10 by 10 pixels will only have to check the pixel values, copy objects and color them 100 times.

An image of 100 by 100 pixels will have to do this 10000 times.

Also, the complexity of the object that is being cloned could make a difference.