As an example, diplomacy. In the original games, this was a simultaneous venture. You wrote down your declarations and then revealed them simultaneously. The same is done here, but the mechanism for the phase relies on player A entering his info, then player B, then player C... This order is what kills the speed. If all players could submit simultaneously, that would take a huge chunk out of the speed and not interfere with gameplay.
The same goes for econ. I don't see what the other countries are building. Why am I waiting for the others to get their phases in before I send my off blindly to the next link and then have all revealed later? This is intentional and implemented rigidly. No bundling is required here: Diplomacy should be done by all players at the same time. Econ as well. There shouldn't be some uber diplo-reinf-econ phase. I declare war on you, then build out my forces and set them up here, only to find someone else has stabbed me and set up forces somewhere else. I should know who I'm fighting before I set up to defend myself.
I honestly believe that the design of the game is fatally flawed and fails to implement modern notions of workflow, graphic design and usability.The has been a lot of good discussion in these forums on what the essence of EIA is, so we should be able to figure what made the game great, and what sucked about the old board game and can be improved because someone (Al Gore?) invented the internet.
