John I disagree. Capture sharpening, whether you apply your own or use what is in a picture control is a low level of sharpening and should be done early. You need to be able to see the effect of that sharpening to determine if you need any local sharpening or blurring adjustments to your image. All of the effects interact, so by laying down your edit steps in order from global to selective you get the best control over the overall image.Final or output sharpening is another story, that should occur near the end of your process. I have never noticed any performance hit due to sharpening,there are many other tools in CNX2 that will bog down a computer more. Anyone trying to use CNX2 with less than 2 GB will have problems. It is always better to have at least 4 GB and if you are running a 64 bit system at least 8 GB, even thought CNX2 can't use more than 4 GB, your system will perform better.