It's going a bit off-topic, but I'm starting to think this trouble with Unstable Injectors and the 0-Flux Speed Boost is just one indicator of a deep flaw with combat. List to yourself the 5 best/most fun ship systems; how many of them boost mobility?
Odds are: every single one. This is because, in my opinion, Starsector combat more or less only has two engaging mechanics: maneuver and flux management. And unless you have options with the former, the latter is mostly a numbers game. Hence, especially in small fights, mobility systems are king.
So, building off Linnis's post and my own previous thoughts, I think giving every ship some sort of mobility system, for a total of two ship systems, could be the solution. If it can be done right, it would reduce the dominance of the speed stat and all-around make combat less brutal. Escaping a losing battle is usually either perfectly safe or nigh impossible, and I think this "do or die" combat is one of the major turn-offs for the game.
Starsector is a good game. It is one of, if not
the best in its genre. But in my opinion
it is not a great game. Part of that is because combat is good, but not great. If combat can be brought above that fine line, maybe Starsector as a whole will come along for the ride.