Odd Rolling

[easilyBaffled]

Hi, not an issue, but a question.
I'm learning how to use Matter.js and I've referred your pinball code a lot as an example.
Can you explain why the ball seems to roll strangely? The rest of the physics seem right, like when it is launched or bounces, but the moment it has to roll something feels off. Especially when it comes into contact with the paddles.

Thanks