Turn "FOV altered by gameplay" into a slider

Make it so that you can choose a maximum amount that gameplay can affect your FOV rather than just a simple binary on/off! I find it important to have this setting on usually, as without it the game feels incredibly unresponsive and it's difficult to tell if I am sprinting or not which gets way too frustrating for me.

However, some effects (namely speed and the enchantment soul speed) increase my FOV up to a level which makes me feel extremely nauseous - it's too zoomed for me to manage, but I find the slight zoom while sprinting important so I just end up not being able to use Speed Potions or Soul Speed as a result. It would be really nice if I could still have that zoom indicator when I am sprinting without it going insane when I have speed effects!