There are no shortcuts.
However ... people have been led to believe there are shortcuts because of the successes derived from beginner's luck, where an un-self-conscious practitioner stumbles on the correct method the first time. The trouble is, it's difficult to replicate that mindset in the short term, especially under stress, and when one becomes self-conscious. However, with practice and time, I think it
can be replicated, but from a position of wisdom and seasoning. And you'd have technique as well, given enough time, guidance and proper practice.
As for chi, I believe that the Chinese reflected on whatever stuff seems to keep us alive, and they gave it a name. I also believe that it makes sense to describe it in terms of quality and quantity, as we've all felt high-energy, low-energy, but also calm or nervous. But anyone that says that you can use all chi and no technique is selling something. In fact, the combination is important: I think that if you have a lot of energy (and stamina) but are calm, and if you have technique, you'll prevail.
Oh, one more thing: I don't think that just doing forms lead to results. Intention, internal sensitivity and adherence to principles inform the forms, as it were. Without those, the forms are empty, and just choreography.
Although Wing Chun doesn't seem to suffer from flowery fists or embroidery kicks.