@sonicbooming I recommend turning off all chat. I did that about 70 hours ago and it really helps. You'll only notice it's online from the dumb usernames! It's not a game where you need chat at all.
Also, if it's helpful, I've noticed that the average player skill in casual matches has actually decreased over the last few months. I'm not sure if it's an influx of players over the summer or some kind of matchmaking change but I don't feel like everyone is insanely good.