What is slow mode on discord?

Slow mode on Discord is a feature that allows a server administrator or moderator to throttle the rate at which members can send messages in a particular channel. When slow mode is enabled, a time limit is set, and members can only send messages every few seconds or minute, depending on the setting. Slow mode can be useful for moderating channels where there is a lot of activity or to prevent spamming or flooding. The slow mode can range from as low as 5 seconds to as high as 6 hours. Only the server moderators with the correct permissions can turn on slow mode, and it does not affect already-sent messages.