This is an archived snapshot of W3C's public bugzilla bug tracker, decommissioned in April 2019. Please see the home page for more details.
Take a look at https://github.com/appium/appium/blob/master/docs/gestures.md. It provides two different API calls: swipe and flick. It seems that flick is just a quick swipe (not sure). The spec doesn't currently provide a way to do a slow swipe.
Also both swipe and flick seem to be a different thing than a combination of tap + moveTo (not sure).
Unfortunately swipe and flick on some OSes mean the exact same thing, which allowing a "speed" may solve. This will probably be on the move() method. Still to be determined