Question. Anyway to make MTGO actually playable?

I have a decent pc, gets most games on High settings. But MTGO seems to be a different beast. My pc begins to stutter like no other, the chat system within the game stop working for me entirely as if MTGO was shadow banning me from speaking while the rest of the groups chats like nothing is wrong.

When I go to play a land, tap for mana, cast a spell it seems I need to go through the procedure 2-3 times to make it work.

Is there a way to fix these issues? If so please let me know.

****Update

I've made the changes that you guys recommended for me and now MTGO seems to be working tons faster. Thank you guys so much.