Jetpack - Acceleration and Duration

In Title Update I would like to see two options given, for custom games, that modify the Jetpack.

Acceleration - How quickly you take off. The current Jetpack has a fairly slow acceleration.

Duration - How long you can use your Jetpack for. The current Jetpack has a fairly long duration.

Using these two modifiers you could set the Jetpack to accelerate extremely fast but have a short duration giving your player a rapid boost skyward but only for a second (among many other configurations that would possible).

Jackpack users could also have their own “Gravity” option so they fall faster or slower.