I myself started out with a "speed grow" mentality however as I became more and more enlightened and invested more of myself into my plants, I've pretty much decided to let them grow at their own pace. Some things you can do to try to speed things up would be to use a 24 hour light regime during seedling/veg periods (although many agree that this increases the likelihood of the plant being male.) You can also decide a certain height at which to stop vegging and transition into budding. 12-24 inches is a popular target height for indoor growers based on the genetics of your plants. There's also a variety of nutrients you can introduce to your plants to increase their rate of growth. The entire Fox Farms line comes heavily praised however I myself am in week 6 of my plants' lives and I have still yet to use any kind of nutrients whatsoever. The most important thing is your light source. The more light you can offer your plants, the better. Often light is going to be the most severe bottleneck in an up and coming grow op, so I'd say get as much light as possible and they'll explode.