So where you're using the module and dividing by five, if you increase that number, you're going to push less pixels per row / column. When you push less pixels, you can increase the size of the dots by editing their radius value to make them bigger by default. That would take place wherever you're using new to create new dots.

Let me know if that's what you're looking for and if that helps! :)

Sorry Chris for the late reply. I wasn't looking for that actually. I want to increase the space between the dots (make them further apart). That will result in increasing the image width and image height.

Have a great day!