There's a "Premier" security line but it's often pretty backed up. If you're arriving outside of the peak international departure time, going through security in the international terminal is often faster than in the domestic terminal. Airside, both terminals are connected so you can just walk through. After you exit immigration, head upstairs and have a look at the security line. If you don't like what you see, keep on walking to your right and you'll go into terminal 3 - that's where the "Premier" security line is. It's not a long walk between them.