Write an efficient C++ program to calculate aes gcm encrytion on data. the program needs to be more efficient than existing libraries

Are you an experienced C++ programmer looking for a challenge? I am looking for a skilled individual who can create a program based on AES GCM encryption that is more efficient than existing libraries. My desired level of efficiency is faster than existing libraries. I have specific requirements for this program, and am expecting minor support and debugging post-development. This is an exciting opportunity for a talented and experienced C++ programmer to create something unique and make a difference!