The phrase "moved at snail's pace" describes something that is moving very slowly. Some synonyms for this phrase could include "crawled," "inched," or "crept." Other options might include "drifted," "lumbered," or "trickled." Alternatively, you could use words like "slow," "sluggish," or "leisurely" to describe something that is taking its time. Ultimately, the best choice of synonyms will depend on the context of the sentence and the tone you want to convey. Whether you choose to emphasize the slowness or the relative ease of the movement will determine which synonym best fits your needs.