I'm sure it's been brought up before but:
Its really frustrating to be in a speed game and have time run out on you when you are going on a large run. Now obviously there are ways around this. You can play on smaller maps... You can adjust your strategy and not go for the large run... but in some instances, that is just the best decision to do so, and the worst part is, is that it counts as a missed turn and you don't even get spoils. Not really sure what the solution might be. I'm not sure if the computer could recognize when a player is actually active (based on number of attacks per minute or something, and grant an extension), but looking for a solution would be beneficial, IMO.