1. Render distance, shorten it. 2. If low FPS laggs you, i'd say it stands for Frames Per Seconds. If you take it higher, like Unlimited, you will see much less lagg.
Another helpful way to reduce lag: Turn the java priority on your task manager to "High". To do this; open Task Manager, go to "Processes" and scroll down until you see "java.exe". Right click, Set Priority, High.