Affordable Tile Floor Makeovers with Cutting Edge Stencils

This is probably a really silly question, but I genuinely cannot seem to find an solid answer to this anywhere online when it comes to these projects!

Obviously, there is a section of the stencil that overlaps onto the tiles surrounding the one that is being painted. So how long should you wait before moving onto the next tile next to the one just painted...??

Naturally I’d just work on every second tile but surely that would take a long time to paint every one... or is the type of paint used for these projects very quick drying..?