2017 5.3L with 6 speed - will a tune make my trans shift firmer/better? 6L80

[TahoeFL2017]

2017 Tahoe 6 speed, nothing wrong with it, just occasional "hunting" for the right gear, and random slow shifts here and there

Reverse back to drive sometimes like to shift weird if you don't wait for a sec before hitting the gas.

Will a tune help this?

Appreciate any feedback from those who have tuned their trucks!