To my great regret, the problem lies in formulating the task. I can’t clearly understand how long it actually takes to complete a map. That’s why the results are like this. I can play a single battle, but strategy is my weak point. So, I need to learn and learn again. In this map, I didn’t even think about attacking the phoenixes. For some reason, I thought they would definitely overwhelm me. I waited for the central one to be destroyed and then finished it off.
And this is a normal phenomenon; the most difficult thing is developing a strategy! With the right strategy, not only is the result better, but, most importantly, the time spent is reduced significantly.