I have to agree over the enhancements to the NPC aggression as well as their flight and fight techniques. I can definitely understand how this could be a bit frustrating for those who are less inclined, or skilled, to commit to battle with each encounter. However, I feel - at least personally - that the buff to the NPCs was direly needed. It will definitely make encounters more difficult to avoid, or turn and run, but isn't that what Elite Dangerous is supposed to be about to at least a great degree? The fear of death and the unknown, and to thrive one must survive? The name speaks for itself, the game just finally started catching up to the name.
As a productive response over and above, "get good", or whatever/however it was articulated, I would suggest that you consider purchasing one of the cheaper fighter class ships and start practicing on your technique. Although it may take a considerable investment of time to master battle, it does not take much more than some persistent and consistent practice to at least learn to hold your own. I know your gaming style may have been predominantly to avoid combat, but at this point you might want to consider adapting to the new world. I can assure you that after few hours of gameplay over a few days in a Viper III, A-rated for battle, you will be proficient enough to hold your own in a battle. Considering the cost is only a few million credits to outfit one of the smaller fighter ships, the cost will not be as great as it would be in an A-spec Asp should your ship get destroyed while garnering a few notches under your belt in combat. Of course there is always the added bonus that you can make a considerable amount of credits from battle as well, but even if that is not your "bag" so to speak, at this point and at the very least it will be a means to an end.
Safe flying Commanders.