When the game starts the player can choose the kit with which he wishes to start, through a gui. According to the kit you choose (default-small-medium-large) you will move faster or slower when setting up your factory.
Any suggestions or errors you find, please notify in the discussion section.

Thanks and enjoy!

Release Notes

0.16.0
Initial version. Without a gui.

1.0.0
Add gui. Add kits (default-small-medium-large)

1.1.0
Update Factorio 0.17.x

1.2.0
Add Game Speed selector