Armani Static

Hi guys.. I'm trying to lower my rendering cost. Its   really really high. 3 Questions: 1. Is  there anyway  to delete scripts from no-modifiable  prims? 2. I tried a  freebie script scrubber..doesnt seem to be working  even on modifiable  items. I just  drag the scrubber script into  the prims content folder..and nadda. It says the prim has been cleaned however my rendering cost is the same. Am I doing something wrong? 3. If I have no  scripts in the item and the rendering cost is  high..am I  technically lagging a sim? Or are my items just going  to take longer to  rezz for the other individual camming me? If  anyone can provide me more info on rendering cost issues and deleting scripts that would be great. Thanks