"Is it a real slow drop and retrieve?"
Not necessarily. Drop and retrieve rates may vary for best success. Many variables will dictate. While experience helps, experimentation is often the norm.

How do u get around that?
Try avoiding these two most common problems:
1. Dropping down too far too fast.
However if a fast drop is desired, then step down 10-15' at a time and hold before next drop. If a quick free fall to the bottom is desired then quarter cast across the tide direction to impart a slight bias tension.
2. Using too long, light or limp of a leader material. This is typically THE most common error.
Generally I will use a heavier, stiffer material for leader than my mainline. Remember, with mooching you're not out there to fool em' but to feed em'. If you can serve it to them "their way", they don't care if it is on a rope.
I typically use 7-8' of 20-25# Chameleon or UG for salmon. McCoy works fine too.

Great question. Mooch on.

Mooch out.