What are some start up problems that 2012 Hyundai Azeras have?

What is your question?

Noise only happens when I start the engine which makes a popping sound. It starts to lose power while driving/accelerating as well as when cruise control is engaged.

What makes this problem better or worse?

Time makes it worse, the longer I drive it the worse it gets

How long has your 2012 Hyundai Azera had this problem?

Since I got the car in July, it has just gotten worse