2.5D jumping speed v. gravity??

How do I get the jumping speed I want, while maintaining the speed of which my rolling object slows down (Gravity)

Hi

I have a 2d side scrolling game with a ball rolling across a landscape.
My ball can jump, but i had to modify the gravity to make it land faster, or rather stay in the air for a shorter amount of time.
This has caused my ball to lose speed rapidly, although i gained the wanted effect on my jump.
How can I do so that my ball doesn’t slow down so fast, while maintaining the jump speed, or opposite? Note that my drag is already set to 0.

I recommend you don’t use a rigidbody as this might cause unwanted effects as the one you mentioned.
Take a look at charactercontrollers: Unity - Manual: Character Controller component reference