I don't get Nausea on FPS Games anymore (Lets Play Borderlands 2)

Since I was a kid I got this Motion Sickness. I don't know if that sickness is the cause of my nausea when I play FPS Games so I can't play FPS games for an hour straight. But lately, I can play FPS Games just by tweaking the settings. I lessen the Field of View (FOV) and Frame rate to upto 60. I don't know if that helps but I can play FPS games in an hour or two straight. I am playing now Borderlands 2 so #letsplay borderlands 2.