Please follow this thought experiment:
1) A ball moves one centimeter in one unit of time.
2) A ball disappears. Then, after a unit of time, it reappears one centimeter far away.
By now we don't define the unit of time: it can be an hour like one thousandth of a second.
The difference between a movement (1) and a teleportation (2) is that in the second case the ball does not exist between one unit of time and another, while in the first case it continues to exist. So, if the unit of time is a minute, after half a minute in (1) the ball is half a centimeter away, while in (2) it does not exist.
But if I assume the existence of a minimum unit of time, the two cases coincide, because also in (1) there is no time fraction - no "meanwhile" - in which the ball can be elsewhere.
In short, if there is a minimum unit of time (if time and space are discrete), is the fastest movement equivalent to disappearing and reappearing?
(by 'teleportation' here I intend that the object disappears at location X prior to appearing at location Y)