They crumble under high expectations.
Children this age are insecure. They are constantly in a hurry so they can be the first to finish. They want to win games so they can say they are the best. They have high enough expectations for themselves without their parents pushing them to be perfect. Too much pressure to succeed can lead children to damaging feelings of failure and frustration.
What you should do: Accept your child’s enthusiastic, competitive nature, but look out for these feelings. As a parent, you have standards, but your kid shouldn’t feel pressured by them. Give your kid freedom and time.