here is a good way to get less lagg 1 right click minecraft.exe next you go to propertes after that go to Compatibility and change it to 640 x 480 and when you run it it may look bluer but you have, Way less lag!
If your fps stinks, try going into an offline mode. If you have a good fps, it might lower it. Before it lagged on 2 chunks render, no smooth lighting, and fast graphics. On offline, it worked for me an I could have all the wonderful settings, up to 6 chunks and smooth lighting, and fancy graphics!
Might work!
Do not leave a huge amount of items on the ground
And Do not spawn a huge amount of mobs
However when you get lag, try pressing F3 and a at the same time to reload your chunks.
Hope this helps