snail's pace

“Why am I stalling? Why are you stalling? You’re moving at a snail’s pace!”

Her waddling gait was a snail’s pace compared to the ostrich’s swift departure, but for Mrs. Clarke it was remarkably quick.

The old coachman grunted in annoyance and spoke at a snail’s pace.

“Russia simply does not have the wherewithal to fully subjugate Ukraine by force. Yes, they are winding forward on the battlefield, but at a snail’s pace and horrendous cost, and Putin’s army is still far short of its original invasion objectives,” said Moore.

If they are, they are doing it at a snail's pace.