minecraft is slow

minecraft is slow

I was on a server and I was in a competition. I won the competition and I was supposed to win a prize.
I thought that I would just get a prize that can use

What actually happened was that I got a bunch of items with weird names. They were just normal blocks you would see in mine craft but their names were just a bunch of random numbers/letters. My mine craft crashed and is really slow now.

1. get given items with weird names