KIA Venga 1.6 Cvvt Automatic Power ratio Air mass meter

Hello, Together my daughter bought a used Kia Venga 1.6 ccvt gasoline automatic EZ.2014 125hp with 100tkm on the watch. Unfortunately, the vehicle has power loss if you give it more gas, it sucks off and takes long until it switches down and then it is on full throttle. I have already switched spark plugs, but hardly any improvement. Failed to read out, nothing came out. Next time fuel filter comes in. Consumption is very high at 10l. This problem? Where is the air mass meter in this car? I searched everywhere but found nothing. If more information is needed, I will complete it immediately.