laggard

One that lags; a straggler.

Slow or delayed in action. synonym: slow.

Slow; sluggish; backward.

One who lags; a loiterer; a lazy, slack fellow.

Slow; sluggish; backward.

One who lags; a loiterer.

Hanging back; loitering.

One who lags behind and takes more time than is necessary.

someone who takes more time than necessary; someone who lags behind

wasting time