On my Minecraft world everything is in slow motion, expect for me, and a bunch of stuff is delayed. Examples: Skeletons can't shoot at me when I get close to them; when I eat, it is super delayed and it doesn't fill up my hunger bars; all mobs are literally in slow motion, when I hit them they stay in the air and slowly land on the ground; and when I open chests they are also delayed and it takes longer than it should for the chests to open and close. I don't know how to fix this problem. I have an idea of how it happened though. By the way, it's a world that I get on with my friends. So our WIFI isn't working, so I used my hotspot on my phone in order to play on the world with my friends. It was working fine, but they were lagging pretty bad, and before we got off the world was when everything started to be slow and delayed. I already tried completely turning off my laptop, and when I did that, it restarted, but when I went back on the world it was still having the same problem.  I really want to figure out how to get this fixed, so if possible, please respond back as quickly as you can. I really don't want to lose this world because me and my friends have so much progress on it and we all love the world a lot. Thank you for reading this! I will wait patiently for you reply.