PLEASE READ

I would love this to be fixed as soon as possible, please. When I am running Minecraft on any version, it runs smoothly. However, when I go above 1.8.9, I start to experience extreme lag. I am very disappointed because I am missing out on all the cool new things in 1.9. I thought this was going to be fixed but now 1.10 is out and there is still no change. The maximum amount of FPS I am getting is 1 and 2 if I am lucky. By the way, I am not going to reduce my settings because I want to play and enjoy the game properly. PLEASE DO NOT IGNORE THIS. I don't want to have to stop playing a game that I spent money for and enjoyed for a long time.