I've noticed that aside from faster channel and menu changes, the newest 5402 file has also addressed a faster blind scan. The blind scan had been almost quite painful but with a couple of changes it can increased. In the settings menu when you scroll down to Tv Channel:

Tuner A
Blind Scan
Minimum Frequency should be changed to 11700 or 3700 for c band (unless the sat has a lower frequency)
Scan Step from 5000 to 15000

These minor changes should increase the blind scan speed of your AzBox but at least threefold.