This is the 474th most frequent Japanese word.
さっそく
"さっそく" means "at once" or "immediately."
Here, 'さっそく' demonstrates the meaning of getting straight to the point or proceeding without delay. It's used to signify starting an event promptly.
さっそくですが、お話を始めたいと思います。
Without further ado, I would like to begin the talk.
In this instance, 'さっそく' is used to express immediacy in action, especially when motivated by a new or exciting event.
新しいレストランが開店したので、さっそく行ってみました。
A new restaurant opened, so I went to check it out immediately.
'さっそく' is used here to express a prompt action taken soon after receiving some information or completion of an event.