Before:

Initial level 1 buildings 2% ↑ Level 2 buildings 4% ↑ Level 3 buildings 8% ↑ attribute bonus

Now:

The current level 1 buildings 1% ↓ Level 2 buildings 2% ↓ Level 3 buildings 4% ↓ attribute bonus



Basically, most buildings have 2-3 effect levels. The higher the building is, the better the effect will be. If you think it is too strong, you can modify your own version. If you can't make it, you can learn it. Don't mean to ask the author to modify it, because I can't satisfy everyone!