There are several synonyms for the phrase "perform well." Some of these include excel, succeed, thrive, flourish, shine, and surpass. These words all convey a sense of achieving great results and being highly effective in a given task or situation. Another set of synonyms might include phrases such as "deliver outstanding results," "outshine the competition," or "exceed expectations." Each of these phrases implies a high level of success and achievement, and can lend a sense of confidence and accomplishment to any description of work, school, or personal accomplishments. Whatever the context, finding the right synonym for "perform well" can help to convey a sense of achievement and success.