Transmission Stuck In Gear problems of the 2019 Acura RDX

Transmission does not down shift appropriately when slowing or traveling a a low speed and the need for fast acceleration is needed. There is about a 3 second delay before any throttle response or acceleration. Car is stuck in 5 or 6 gear and going 10-15 miles per hour and no acceleration despite gas peddle pressed to the floor. Highly dangerous delay in acceleration response like when cross traffic. This will get people killed. Dealer says is working as designed. But it a very dangerous design flaw then. I can slow from 40 mph to 10 mph and then apply full acceleration and there is no response from the vehicle for 3 second. Very repeatable. No acceleration despite gas peddle pressed to the floor.