u/Big-Satisfaction5948

I have a tata safari 2024 accomplished automatic. Recently i have noticed that when i drive at city mode and for over take i rev up the engine sometimes the rpm gets stuck and then i have to rev again to get back to the normal mode. In sports drive mode it used to be a beast but now it’s really really bad it revs but doesn’t move. I am new vehicle owner please tell me am i driving it in the wrong way or the vehicle has an issue.(btw since third service even my mileage has dropped a bit and idk maybse since then i have noticed this issue more)