Danteh has a 1x1 pack that he released with his resource pack folder but it made 0 difference to my fps, I was expecting 1000 fps but was stuck at my normal 200 :(

Razer Game Booster OR Windows task manager and set java priority to high (the one that's using more memory is the one you want to set) game booster and using task manager won't work together, it's one or the other

Play in windowed mode, it's actually not bad at all. I don't have low fps and I still use it, it's just more comfortable, you'll get used to it. xhockey Danteh Hivlik(?) use it

Get optifine lol