First Time using Toon Boom to make a Bowling Ball, Football and Ping Pong Ball Roll Down Stairs

I preferred to draw on the graphic tablets in order to create these animations, here are my results:

Bowling Ball

 Football

 Ping Pong Ball

I think that the Ping Pong Ball moves far too slowly so I need to find a way to increase the speed of the ball, maybe changing the frame rate.