Adds massive cargo ships to the game, that function similarly to trains. Also adds deep sea oil, oil platforms, tanker ships, train bridges and other water based content.
That's just the way it is :) Boats go slower than cars, unless they are specifically designed for speed. You can increase the speed modifier in the settings if you want. Or try the Hovercraft mod.
When I finally get time to work on adding features, the option to add more boats will really help. We could really use a speedboat, armed landing craft, battleship, car ferry, etc.
Unfortunately, it a setting that can't be changed after the game has started. I'm not sure why this can't be changed while playing, it seems like it should be able to.
It's a startup setting. It changes the boat's speed in the prototype, which is set during loading. You can change it on the Factorio main menu, reload the game, then reload the save file (don't resync mod settings) and the new setting value will take effect.
I’m good with the starter boat with the speed it has, but a later tech speedboat with smaller inventory (if any) that’s at least 50-100% faster would be great. :)