Shifting behavior is a good description.
The parts do what you set them up to do, and simply react to your shifting behavior.

1-Anticipate. You should not be going from the smallest cog in the back to the largest cog in the back with one "throw." If this is an uphill after a downhill, position your chain while you go downhill, in order to be ready to climb. That includes trimming the FD.

2-Understand your gears and their limitations. A double FD generally does not cover the entire rear cogset without some adjustment. Also, if you can understand the actual gearing, you may not need to cross all those cogs in back at once, you may be able to move on the front ring and get the gearing you need without large jumps on the rear.

3-There is a learning curve to the shifting. Practice when you have the luxury of experimentation. Adjust your FD/RD and cables, and ride to, not in spite of, your gearing and setup.