Toddler's slow eating can be frustrating, but don't let this get to you - be patient. One solution is to give her smaller portionos, then praise her when she finishes what's on her plate, and offer her some more if she still seems to want some. If not, then she's done! Don't, however, let mealtimes go on forever - limit them to, say, 30 minutes. After this time it's unlikely she's going to eat anymore.
At this age you can help improve toddler's coordination by giving her different ways to play, such as with smaller toys (while you supervise) dough-style play, little animals to create games with, finer puzzle games, etcetera.