I know most people don't use LazyCam. I have limited funds and not enough money to buy another CAM package, which probably wouldn't run well on my old hardware anyhow, so I do use LazyCam.
But one thing that slowed me down a lot was excessive Z-axis movement. If I'm making four passes, it lifts the Z-axis before plunging further.
So I've written a small command-line application I'm calling the "LazyCam Z Optimizer" or "LCZO.EXE" for short.
It works like this:
lczo < input_file.tap > output_file.tap
It scans through your input_file.tap and finds any unnecessary movements of the Z-axis, and comments them out.
This can greatly decrease execution time.
For a second I thought it would be unnecessary because I found the "Plunge Clearance" feature, but it turns out that isn't what I thought it was.
Let me know if you want to try my little application.