I think it's a lot more complex than just "jack up security here, lower it there". I think that would be a simple nod at making it make sense and an improvement over what we have now (essentially nothing), but you need to also consider wealth levels, response time and force, government type, system state, economic and population factors. In high sec security response might be faster, but in a low wealth high sec system the ships might not be very well fit (maybe lots of small ships), in a low sec/high wealth system response might be a little slow but the ships may be very well fit, or response time may be about the same but the initial force may be really weak (just an eagle or viper checking things out). Depending on what's going on (maybe just piracy) he may cite the attacker a fine, but move on. If you're in active combat he may engage or he may call in backup and circle menacingly until they arrive a minute or so later.
So yeah, it needs to be fixed and it needs to be fair, but there is a lot to it to make it work well and sensibly.
So yeah, it needs to be fixed and it needs to be fair, but there is a lot to it to make it work well and sensibly.