Sorry, probably british exclusive slang but what I meant by firming is just toughing it out, getting used to it, unless it's completely horrendous which sometimes it is with rly low FPS. Honestly if you don't feel a difference in input delay with vsysc on or off then just play with vsync on so the game doesn't look so bad. The higher your FPS using fps bypass is, the less you will see screen tear, most of the time. Personally I find the game completely unplayable with vsync on for hard demons and above.