Brother look for condition of following things one by one; go for differential diagnosis and rule out things which do not apply to your case:
Air Filter (it must be clean and genuine), genuine engine oil and genuine oil filter, 5w-20 or 5w-30 fully synthetic engine oil meeting API SN / SN Plus, and / or ILSAC GF-5 criteria and provided engine health is perfect, condition of plugs and throttle body, Catalytic Converter / Exhaust System, Tyre Pressure as per OEM recommendations, Wheels perfectly balanced and aligned, no extra weight inside the car, etc.
I hope, this helps. Thank you.