Lots of clothes are now coming with standard resizer scripts, which include the ability to delete the scripts when you have fitted them right. This reduces lag and is a really good idea, although you should always make sure that you have a backup copy first. Never do this on your only copy if you ever plan to change your shape!
But what if you have a no-copy outfit like the amazing full-prim outfits from Feral Spirit by Melanie Jaehun? You have a problem, because you can’t make a backup and you don’t want to delete the scripts in your only copy of the outfit.
Melanie made the excellent suggestion that, for objects that are no-copy but are mod, you can disable the scripts instead. With 1.x Viewers (eg. Phonenix, Imprudence, etc.) you go to the Tools menu and select “Set Scripts to Not Running in Selection” for each object. This will have the same lag-reducing benefits as removing the script, but without losing the ability to re-enable it and run it again in the future.
Thanks for the tip, Melanie!