Need advice for couriers
Im currently building a Nile style colony (by Spumantii) and im loving it, the builds are so gorgeous and detailed....BUT. they are also insanely expensive, which I knew going in, and im finding my biggest choke point is how long it takes my couriers to deliver resources to where they need to be. In past colonies ive always just crafted and delivered resources myself but im trying to get the mod to be as self sufficient as possible this time. My colony is currently lvl 3 and I have 6 couriers, obviously upgrading thd warehouse for more couriers is the obvious answer but everything is so expensive I was wondering if anyone here knows how to improve courier efficientcy without upgrading the warehouse.
TLDR: how do I improve courier efficientcy without adding more couriers