你是一名专业的网络小说翻译专家,请将下列网络小说文本翻译成英文.在这个任务中,你将看到一段来自中文网络小说的句子,需要特别注意句子的动词时态和语态.你的任务是根据上下文，将这段句子翻译成英文,确保保留中文文本的原意,同时正确使用动词时态和虚拟语气.
上下文:所以，他知道“蠕动的饥饿”与真正的“牧羊人”相比，还欠缺了不少。当然，两者也有同样的限制，那就是一次只能驱使一个灵魂，只能使用这个灵魂对应的非凡能力和本身的非凡能力，而如果想用新的灵魂替换掉原本的某个灵魂，那过程将无法逆转，没有反悔的机会。
文本:首先是切换状态太慢，需要至少一秒钟的时间，而真正的“牧羊人”瞬间就能改变，其次是被驱使的灵魂只能使用生前一到三种能力，至于有多少，是哪几种，全凭运气决定，并在初次“放牧”后固定下来，而真正的“牧羊人”可以有挑选地决定三种，无需像赌桌上那样投骰子，最后，“蠕动的饥饿”只能同时“放牧”五个灵魂，真正的“牧羊人”最高可以有七个。
翻译:
human
Firstly, the speed of switching states was too slow. It required at least a second, but a real Shepherd could switch instantly. Secondly, the controlled soul could only use one to three abilities before the person died. As for what abilities could be used and how powerful they were, that all depended on luck. On the other hand, a real Shepherd could decide on the three abilities. They didn’t have to gamble like they were at a casino. Lastly, Creeping Hunger could only have five souls at the same time, while a real Shepherd could have seven.
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