Thank you for replying. I tried disabling VSync and limiting the framerate to 60fps and I got screen tearing, even in scenes with stable 60 fps. I did some more testing and realized the game isn't triple buffered (even if I tried to force it in the nVidia Control Panel). Whether I used the game's own VSync or used nVidia's vsync (with the game's own disabled) , the game always droped to 30 fps when it couldn't sustain 60 fps. The best solution I could find was to enable "Fast Vsync" in the Control Panel and limiting to 60fps in-game.

TL;DR the game isn't using Triple Buffer. I don't mind the ocassional frame drop, the problem is that the game drops to 30fps even when running at 58 fps (with not Vsync). Yeah, I found a solution and I'll be using it, but still the game didn't have this little issue before, so maybe it is something that can be fixed.