Sometimes I fail to answer slack messages for a good chunk of time, with email I only have to pay attention to one notification and can handle all communication

Sometimes I fail to answer slack messages for a good chunk of time, with email I only have to pay attention to one notification and can handle all communication from the same interface (and you have to use email anyway). I don't think there is anything inherently slow about email, or that firing off one without a carefully crafted subject would be bad manners. Might be a personal preference, nevertheless I don't think there is any technical advantage in using an instant messaging service.