If you're feeling important differences just doing silly, poor form plyo work etc, imagine what the difference would be if you were to incorporate actual good plyo work (multi-directional jumps, bounds, donkey ankle bounces, sprints).
Heck, if I were you, with a good strength base but looking slow, I would do one of the VJB novice or beginner plyo program. Whenever I did those they felt so good, and I'm more reactive than you/quicker/faster (don't take this the wrong way, I'm not trying to be arrogant here or anything).
The point is that you'd have a lot to gain from doing novice/beginner plyo work for a while, IMO. In fact, you might be amazed at the results, in your particular situation. Heck, even Air Alert could work for you.