Happy to hear you like the game.
I always use vsync on(or half) and that limits the fps to 60 or your display refresh rate (look in settings). But it's easy to limit the fps so I will add that in next updates.
For the english, I wrote the dialogs about 2 years ago when I implemented that feature and I never updated them, when I will add some story to the game I will revise the dialogs. If you want I can include the mod in the next version release.