[PTTG]

I would point out that it certainly makes sense that there's no theoretical connection between size and performance, the cost of making a high-end drive is slightly more than proportional to the size of the drive, since as the drive grows larger, there's a multiplicative effect on the number of elements that need to be calibrated. If you see a very fast, big ship, then you're looking at something that belongs to a very wealthy faction, while a tramp freighter can be quite fast even as it scrapes by with a single (exceptionally talented) engineer.

So, A), but B).