I agree with Thumber1. Beginning on a swim team demonstrates the ability to commit to long term goals that require a large and prolong effort. Just what I would think college would like to see. I doesn’t matter what your times are unless you are trying for an athletic scholarship. What matters is that you had the focus to maintain a long term sport.
Swimmers are well known for time management that is necessary done to the time demands of the sport. Another thing I would think colleges would be looking for.