linguists believe that the way people spoke in Shakespeare's time was similar to how people speak on some islands off the cost of the Carolinas in the US South.

This is one of those things you hear on the internet all the time that has no real truth behind it. This story was based on 1 paper written by a guy with no expertise is shakesperian English and has been supersceded by much better researched ideas on what Shakespeare sounded like.

Ben Crystal is probably the best source as to what Shakespeare actually sounded like and its far more west country than American

https://youtu.be/qYiYd9RcK5M?si=X_QEH4PExwxzyrVq