I agree and especially agree that using energy/stamina/items/cash to speed up an upgrade would be the best solution!
This is going to be tricky to do as it's not fair to people who've already paid to upgrade. We may consider adding an option to allow friends to help upgrade a property thus reducing the time that way.
i honestly think to fix that problem.................This is going to be tricky to do as it's not fair to people who've already paid to upgrade."]This is going to be tricky to do as it's not fair to people who've already paid to upgrade. I think there should just be more properties!