It is faster. Seriously as a teenager I FORTRAN would run circles around everything but Assembly. It is still in use even in R and many statistic languages/programs (Why reinvent the wheel)
COBOL needs to DIEEEEEE!!!!!!!!!!!
Lets make a COBOL transpiler and run the mainframe legacy code on top of asm.js
I kind of want to write up a buzzword filled pitch and see if management bites.