I’m not sure I understand the question.
To speed up growth you need to have your environment as close to ideal as possible. Using cheap ingredients will not help. But this takes more than just fertilizer or plant food. You need optimum lighting and to keep temperatures at ideal ranges, as well as making sure conditions at the root zone are optimal, the right pH and not too wet, a well draining soil, etc…
Have you downloaded and read the free e-book? This will help you understand all the ideal parameters for a successful grow.
Also, please, if you want help, we need you to take your time and write clearly. 7-7-7 I’m pretty sure is African violet miracle grow plant food drops and not, I’m sure you meant cactus drops, not cat-tis bloom booster.
I look forward to a clearer question and helping you further.