It's a centralized server, big or small orders makes no difference to a computer, they are just 0's and 1's , nothing new here. If the orders were all matched decentralized at that speed, that would be something else.
Look at the big picture. This eth is stronger than what people are thinking. That’s all. Btc is a diversion. others are distractions. When you can buy the one that you know can advance more than Btc and advance more than USDT. then just dca eth. (Dollar cost average ethereum.). Among all the top 20 coins, I doubt ethereum bulls for the weak will get shaken out. Probably using their fiat to load up and selling their other alts towards this alt