I tried the 2 mods during long games, with all 16 civs in the game. There was no loading process problem, neither was any AI slowing down the game, or anything like this. I suggest that you try both mods together, without any other mods. If the problem persists after that, then you might have to delete the whole Cache folder's content (it's a pain I know...). About the Units Bonuses, I need more feedback about balance.