Hey Nirchie!
As you probably noticed the "default style" might feel weak because the jump force is based on the camera view: the higher you look, the more jump force you get. The "classic style" is constant: the jump force is always the same no matter the camera angle.
It's intentional to give the player more control (this will be much more emphasized in the next version). It definitely takes time to get used to, and I'm still tweaking the numbers, but I hope it will pay off.
Thank you for your feedback!