Well that's why I offered 3 options (in case you are worried); default mode, anti-pattern mode and fast-mode :D
runescape doesn't track mouse movement, they only track clicks, and my script handles clicks perfectly (it avoids clicking the same points, and gravitates toward the center point like a human would), at best, they can only see the time between each click. so don't worry ;)
As for the barbarian knife part, I will be adding an AIO cooker to this script, and since that feature is included; it will be an extra checkbox under the fishing gui once I add the AIO cooking, so it will all be bundled in the update