This may be a rant-ish post, but I've been getting extremely frustrated with these two mechanics recently.
Stalling AI is a behaviour I don't really understand in and of itself, the game is already slow enough that you don't need to add chasing down infinitely kiting ships to the mix. Phase ships in particular are really infuriating to fight with the current AI behaviour, if you don't have a phase ship of your own to catch them when they decloak it seems like catching the smaller phase ships is essentially a matter of waiting for their CR to run out, because you'll never catch them otherwise. I suppose making the AI ships cautious is intended to increase the challenge, but honestly I feel that if they were much more aggressive and attempted to swarm the player rather than run away from him it would be equally if not more challenging and incredibly more fun to fight against.
Now where the stalling AI leaves the realm of annoyance and becomes truly unplayable is when you take into account the inexplicably harsh CR mechanic.
This is really something I don't understand, and if the Dev reads this I'd be grateful for an explanation, why on earth was the CR mechanic made this bad ?! Before it would somewhat cripple your ship by the end of a fight, which I thought was fine, but now it might as well be a count-down to the self-destruction of your fleet. Even if you have a better fleet composition than the opponent, that you slowly grind down all his stuff, as long as they possess a critical mass of bodies to throw at you they can simply wait until your fleet disintegrates on its own. Now, beyond all discussions of realism and whatnot, this is just unfun. Honestly I don't even see what problem it solves. Preventing players from solo-ing fleets with an OP build ? If someone has fun doing that then why needlessly limit them ? It's not like this is a multiplayer game where everything has to be balanced.
Yeah, I actually can't see any good reason for this mechanic to be as harsh as it is currently. I'm open to being corrected of course, but the game heavily discourages you from having too big a fleet by making supply/fuel exponentially annoying to manage as you acquire more ships, while the CR mechanic heavily encourages you to have a bigger fleet than what you fight so you don't get caught into a losing war of attrition. On top of that, bounty fleets, which are the main source of income/fighting in the end-game, are enormous in terms of numbers and very hard to match in that regard.
Anyway, that's how I see it, this frustrating situation imo is not down to any single mechanic but a result of overcautious AI, too harsh CR and some ship build that abuse it hard like wolfs, medusas, phase ships and the likes.