Yeah that's what i use.
Anti Lag can be helpful in fast paced shooters - if you are fully GPU bound (99-100% locked GPU utilisation) in said game. However, sometimes it can cause stuttering and slightly lower performance. So you have to try it in said game and see if it works.
Enhanced sync reduces tearing when your frame rate exceeds the refresh rate of your FreeSync monitor. This can be useful if a game gives a lot of tearing at high FPS. Like Anti Lag, this is one of those features that you need to test with the game and see if it provides a benefit, otherwise you can keep it off.
I use both features on a few games, but for the most part i keep them both off. I find it better for fast paced shooters to adjust image quality details so that GPU utilisation stays at 80% or lower, then to use Frame Rate Target Control (found under Global Graphics) to lock the frame rate to 3-5 FPS below your maximum refresh rate of your FreeSync monitor. This will reduce latency and help in fast paced twitch shooters. For other types of games this is not necessary.
Other than that, you don't need to do anything.