For the snake to feel more secure I would cover the back and the two sides of the enclosure with dark fabric, paper, or something like that. Something to close the enclosure off to light and make the tank feel smaller to the snake. This will make the snake feel more secure. Ball Pythons like to hide, they spend the vast majority of their time hidden in dark, tight spaces where they feel safe. If the snake is cruising the tank it is looking for a place to feel safe and warm and is unable to find one. This is when we need to make adjustments.
So after wrapping the 3 sides, I would add another hide, you want one on the cool end and one on the warm end.
Adding some fake plants and clutter would also help to make the snake feel secure.