What does Hamlet mean with this Speech in Act 3,Scene 2?

Here, Hamlet is giving advice to the Players and is telling them how he, Hamlet, wants the actors to speak. At the beginning of the speech, Hamlet says to speak the words "trippingly on the tongue". He is telling them he does not them to be bombastic because that would destroy the intent. Don't be loud to hurt the ears of the groundlings (those who had the worst seats on the ground at a play in those times), and he expresses his contempt for the ability of the groundlings to understand much. To scream is to act like a Termagant, which is an imaginary deity some Christians believed Muslims worshipped (Middle Age belief), and Termagants were usually played by loud boisterous actors. Hamlet would whip such an actor. He simply say to speak the lines he has given the players without undue pion and histrionics.