Lots of rigidbodies lagging the game

[MilanCop]

Hello sir,

first of all I want to say how impressive this is and would like to thank you for it!
but second, I am making a plinko game I added 52 obstacles and then the user spawns in balls, I added all of them as a Rigidbody,
but when I spawn in even 2 balls it gets extremely laggy and my roblox studio almost crashes, I saw that you already created something like that but it doesn't lag that bad, how did you do it if I may ask?

Kind regards!