Feed the vine something with a lot of nitrogen, like Lawn fertilizer.
Just a little, not a lot, and see if the growth is more green, it won't flower as much.
Try it, it will work. If that is what you want, more green leafy growth and fewer blooms.
Most people go out of their way not to put too much nitrogen in the soil around their plants because they want the blooms rather than the growth, so do the opposite.
GOod Luck!