It's easy to get snobbish about Shakespeare and to believe it works only when performed in the elegantly trained received pronunciation of an Ian McKellen or a Benedict Cumberbatch. But, as the Crystals point out, received pronunciation is even further away from Shakespeare's original accent than American accents are from it.
Shakespeare can be performed in any accent. English, Welsh, Scottish, American, Canadian, Singaporean, I don't care. His words still have immense power. However, when you hear it spoken in O.P., you really get a sense of what it must have been like for those first groundlings at the first Globe Theatre.