Screen goes black for 3-5 seconds when going in/out fullscreen

Found what it's caused by, I'm using OptiFine (like everybody else), and in Video Settings>Other, I set my fullscreen size to my screen size instead of selecting "Current", selecting current fixed the problem, although I would like this to be solved :V

With that being said, this report is invalid as your game was modified when experiencing this issue. A moderator will shortly resolve this ticket accordingly and no further action is required. 😃