Exactly! It's decorative painting, not the 100 metre dash. Let it grow organically and with love.
As Carol said acrylics dry in the wink of an eye, and if the design is layered, the brushes should be so lightly loaded the drying time is minutes, if at all.
Put the kettle on, step back and admire your handiwork, then reposition.
Sorcha do we get to see a photo of the finished masterpiece? I have imagined it in my head and it looks lovely.