The shader compilation step pre-game can take a long time depending on your CPU. This is especially annoying if you like to keep your graphics drivers updated and play a large number of titles. Is the GPU with all its cores not prime hardware for this kind of work with thousands of little jobs that need to be done all at once? Is the implementation of an on-GPU shader compiler an improvement we might see in the future?
you would just be building a shader to compile the shaders and it’ll probably take as long to perform the intermediary step for that between new drivers.