There is no evidence to suggest that Lipitor, a statin medication used to lower cholesterol levels, can improve swimming speed. While Lipitor has been shown to have potential benefits in reducing the risk of heart disease and stroke, it does not directly enhance physical performance. In fact, some studies have raised concerns about potential side effects of statins, including an increased risk of developing dementia [2].

In general, improving swimming speed requires a combination of physical training, proper nutrition, and rest. Athletes may also consider working with a coach or trainer to develop a targeted training plan that addresses their specific strengths and weaknesses. Additionally, sports science research has identified a number of factors that can impact swimming performance, including body position, stroke technique, and equipment [3].

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.health.harvard.edu/staying-healthy/do-statins-increase-the-risk-of-dementia
[3] https://www.reuters.com/article/oly-science-athl-newton-adv11/newton-at-the-games-sports-science-idINDEE86F0CD20120716