Flori you need some sort of mayoral office which controls the game for you :as in you set the rules for each typer of building and tell the mayor to upgrade buildings or not
Edit (trying to make it less complicated)
So what I meant is that you should add a mayor's office that counts as 1 homespace and 1 workspace both by 1 person who vote (a poll booth as well to add to this) and you can assign him to buy upgrades or to not buy upgrades (so you don't have to manually).
Edit 2
Another thing to add that might help the game is more raw materials and material based buildings (e.g uranium and nuclear power plants) also a power resource that you can assign a certain amount to different building types and without it the buildings that would usually require power would shut down (buildings that would need power include all factories the arcades the houses nightclubs ext)