I have acrylic nails, but don't have them too long - also have infills every 3 weeks or so. I think over time you adapt to having longer nails - any difficulty with them being a bit longer is offset by the fact that they are so hard that you can do just about anything with them.

Marchbirdy, not sure if what I have done is the same as you have but I swim at least 3 times a week and have never found it a problem.