Whenever I go into a singleplayer world or a server, it feels like my mouse sensitivity is through the roof. I can only look at the sky or the ground, and I can't move without freezing. I even turned my mouse sensitivity all the way down to 1, and it still persisted. This was a fresh download on a new computer, running Java 8 64-bit, 3GB dedicated RAM, any minecraft version. I haven't a clue what's going on here, so any help would be appreciated. If you need any additional information, I will provide what I can. Thank you.
Read more: Very strange Minecraft lag issue?