turn vsync off and limit your Apex's framerate in nvidia's control panel at 3 fps lower than you monitor's refresh rate.
just for Apex. You don't have to have vsync on if you limit your frame rate below your monitor's refresh rate.
I had issues with gsync+vsync with 1070. The card would not be fully utilized when required so then GPU usage and fps were both low in certain situations.
Or better yet test by disabling gsync and vsync and enable fast sync in nvcp for Apex without a max fps set up. Is your game smooth with fast sync? If so then it's probably an issue with gsync+vsync. Or it might be something totally different of course.
If you mean that your movements are often like choppy and it feels that the game is struggling to position you correctly on the map when you run around and all this while not having any dips in FPS and no red connection issue icons then I've been having the same issues lately.
