Set your render distance even lower\. Make sure that nothing else is running (music, other games, etc.) You could try to find some sort of download to make your pc run faster, although I don't know any off the top of my head. There isn't really anything else I can think of, you could always just use another computer if that is an option.

try using GameBooster. It helps speed up any game.

Here is what i would do; change your performance to 'Max FPS', flip your open GL to 'on', change your render distance to 'short' when in jungles, play on peaceful, and make SURE EVERYTHING EXEPT Minecraft is closed

Do what people have said above me, turning your graphics quality down all the way. Also try a mod called Optifine, it can usually double FPS on most worse computers.