Some info for you:
The 8 speed was never available in the AWD cars with a V8. Only the older 5 speed auto. Trucks, Durango, they got the 8 speed, never the cars, not with AWD and a V8.
The 8 speed does NOT start you in first gear. Maybe on the bigger trucks, but not on anything else. This is to prevent you from blowing the tires off or even just letting them spin on wet roads or other bad conditions. It will drop down to first gear depending on throttle application and speed sensing.
So if you are daisy footing the gas leaving your driveway, the car is probably downshifting to match the actual speed you are moving.
Picture a 5 speed stick, but you have it in second gear at every stop light. As you let the clutch up, you realize what you did and quick slap it back into first.
The computer for the transmission will do all sorts of things, like skip over a gear or two, hesitate to downshift, quite a few things to prevent harshness or excessive shifting.
Cars with the paddle shift can force the car to use all 8 gears. On my AWD '13, with the 5 speed, I find the paddle shifters are exceptionally harsh, and downshifting with them feels like I am forcing it to do something it is not designed for. They also bypass traction control or at least make it confused, NEVER use them on poor road conditions. I basically ignore them.
In short, don't expect it to drive like any older vehicle with a 3speed+OD from the last 50 years. The transmission is 100% controlled by a computer that uses actual speed and engine RPM+throttle position to decide for you what gear it will be in. Think about it next time you do a 0-55 onto a highway from a stop. There are 8 gears, it would have to shift 7 times. It skips gears.
It's not bad per se, this allows it to get into the power band as fast as possible at basically any speed, and also keep rpm down at most any speed for MPG. I have long said an old engine from the 60's paired with a modern 8 or 9 speed would be a much more fair comparison than what people like to do: compare a modern engine with a 9 speed to an old iron V8 with a 3 speed slushbox. Transmission tech is what has improved in the last 20 years, not so much the engine itself. The crazy gear spread allows for steep final ratio in the rear end and lets a 300HP engine move a car that weighs 1200lbs more than stuff from 20 years ago much faster than a 300hp, lighter car from 20 years ago and get 30mpg to boot. I despise all the computers in modern cars, but the transmissions now days would not function as a mechanical, pressure driven unit, so it is one area I concede their requirement.