You misunderstand. the game is running correctly, the mechanics of a 2x increase at a flat rate is a broken mechanic. in under an hour I can get from nothing to the point I posted the screenshots.
Oh, balancing broken you mean! xD Sorry. In the next week a balance for the prestige mechanic will be there. The main problem right now is that you can gain too much prestige at low levels
 "Defender Idle 2"){kind=icon}
 "Idle Pizza Factory"){kind=icon}
 "Bon-goo Invasion"){kind=icon}
It was a quick addition to the update yesterday, I will correct it in next patch, sorry.