In mIRC however, nothing is compiled and nothing is pre-calculated. Any constant would essentially be a read-only variable, accessing the memory address just as slowly as any other variable. To make such a variable read-only would simply cripple its full potential, offering absolutly no speed improvements.
You are partially right, but keep in mind that even though nothing is compiled, the language is still interpreted. Values defined as non-changing throughout execution, would not require any further evalution as the script executes. This is what could/should improve execution time.
However, don't forget the positive effects it could have on the language/code structure.
