Create more game speed options: 45 seconds per turn
I've noticed many people find "very fast" mode too punishing and "fast" too slow... It would be wonderful to have a turn speed that's 45 seconds as a happy medium.
Very fast is almost a necessity for games with more players or required victory points so that the game doesn't forever, but when users accumulate enough cards (unavoidably so because there are more players rolling the dice between your own turns) they don't have time to properly manage all the cards. Often trading bogs down most of one's brief turn window too.
45 seconds sounds like a great sweet spot to games with more players moving without being as punishing as very fast (30 seconds per turn).