To understand how a "no delay" modification works, you must first understand how Ragnarok Online handles data.
Altering your local files does not alter the server's clock. If you attempt to inputs actions faster than the server allows, you will experience severe (desynchronization), where your character snaps backward in position, skills fail to activate, or the client crashes with a "Gravity Error." Conclusion: Is It Worth It? no delay grf ragnarok hot
Future research directions include: