Slowpoke

He's a slowpoke.

Tom is a slowpoke.

He's always late. What a slowpoke!

Hey, you slowpokes in the back! Get a move on!

"Yas'm," said Prissy and, turning, sauntered down the walk at snail's gait. "Hurry, you slow poke!"

Some cooks are diddlers and slowpokes. Some are efficient speed demons.