I wonder, does Research % modifier affect AI too? Because if Difficulty does that too then we need to know how they interact with each other. I am starting to think research % only alters player, because if it does everyone then it means there is no way to alter just the AI.
No... and no... we have already done some test of this... The research modifier is affecting everything in the game.
If you set the research to 10% both you and NPR get 10% as much research from labs from a normal game.
If you then set the AI to 150% the AI will instead get 15% speed on research while you get 10%, this is pretty simple math.
I can't prove that the last is 100% true but I see no reason why this is not how it work or at least is suppose to work.
I at least know that NPRs research as slow as I do when I did a multi-faction earth start with few NPR on there... I'm pretty sure I will see them research faster if I also give them a substantial bonus in difficulty but I don't have the energy to test that right now. Someone else will have to do that... it should not be too difficult to find out.