1st of all: Cracks and illegal software have nothing to do with script and settings which are stored by the game and can be found in .CFG files. Now.. By manual edits, RtCW can be more optimized than via the ingame menu. Not much, but still..
Many of these config files are online. Here are some great examples of full personal tweaked configs. Just remember these are written by and for other computers. Anyway, tweaking RtCW means game optimalisation for me.
After setting graphics and network in the menu, this game runs fine. Straight out of the box and it almost did just as well on my 800MHz Windows 95 pc many years ago.
And this last fact is a nice part of RtCW: For this game it hardly matters whether an old or brandnew pc is used.
Just one manual .CFG change might be recommended for starters with optimizing (tweaking) in mind:
After 10yrs found out my networksettings for the game were not optimal. (Tnx ToaK!). About 5 min work ;)..
(Lately I did some more customising but nothing really special going on here. I test a new setting once in a while..
I don't know much about WolfScript and stuff. Here's one of many good tutorials if you're interested,,