You should be able to upgrade builders so our upgrades for everything else can take less time and loot, you should be able to have multiple workers work on upgrading one thing if wanted.
Also we should be able to set up what we want upgraded, for example when something finishes upgrading while you are alseep, if you have the loot, you should be able to set up what you want upgraded next, that way you get more things upgraded in a timely manner.
