An option to block pop growth would be useful. When making a bunch of settlers food can get too low to be able to just because a new pop spawned, which is rather annoying.
IMO trading with natives, Port Royal, etc, should not increment the goods-traded-count for tax increases, only those of Europe and Africa should. IMO it should also be based on gold traded rather than yields, as to not penalize trading raw resources / low-value goods (which should also help the AI as a secondary effect).
Is the health mechanic disabled for AI?
There are some glaring building priority flaws in the AI:
(these pics are from 2nd hardest difficulty)
Even here only now is it building a well, never mind the granary lol, 2 high-priority buildings for me at least. No crosses either, yet a maxed out port?
The reason this AI has gotten this far in Quebec is spamming wood/hammers from taiga forests. Which goes to show how massive a difference it would make if the AI would be able to manage hammers properly (both pics are from the same game).
Also, if the AI is living in permanent unhealth then that's a massive debuff. This Quebec is the only place I've ever seen the AI having hospitals at. Hospital lvl 1 should be high priority, like well & granaries. lvl 1 butchery is also pretty good due to its free +1 food.
In terms of crosses I'm getting a new migrant every 2nd turn, but seeing the AI not having nearly any churches that seems like another weakpoint vs the player.
AI also seems obsessed with arsenals, building them in every single settlement, yet with my 2 active lvl1 arsenals it seems like I outproduce the AI in terms of guns...
Though this could be because the AI likes fielding line infantry, while I either spam Dragoons (I have more horses than I can use lol) or militia, which are way more cost-effective.
Amsterdam above has a max level arsenal... what a waste of time lol, this AI has more arsenals than it has mines...
IMO the AI is focusing on bells to an exaggerated extent. I'm basically not getting any founding fathers, which for the player is annoying af, while the AI is prioritising it so much that it's not cost-effective for it. It would be better off investing in production/industry buildings and using those +2 or 3 pops on production as well.
AI should also rush lvl 2 walls (when it has a town hall), it's a no-brainer really.
My capital for reference. Notice the granaries, health stuff, abbey, lower level city hall, lvl 1 arsenal, and a healthy mix of production, most of which is in actual use.