It is not to say that a front swap will make it a better responding bike. There is much more to it. Even the Honda front can be tailored so it will work, much, better. Common 'mistake' is that one think that swapping for something more modern will turn it into a modern style behaving bike, well that does not work. Like you said it was the 70's.
Gl front swap is a well known one, although you will need to 'tune' in spring and damping.
Rob