Sorry for my n00bness, but it seems to me that putting lots of warp engines on a freighter will get the freighter to a trade world faster, but that once it arrives, the amount of trade money I am making is the same as with a slow out-of-the-box freighter.
This seems exceptionally counter-intuitive to me. Shouldn't trade income be based on the amount of turns a freighter requires to make the round trip as well? (Or is it, and I am just too stupid to notice?)