please do not mixup terms anti-freeze & coolant. both have different chemical composition and characteristics. anti-freeze is used as coolant in motor engines in the areas with extremely cold negative temperatures.
regular coolant is used in tropical areas be sure to use correct liquid as engine coolant depending on your location and avg temperatures through out the year.
Modern day Auto transmission & CVT fluid change is required at 75000 km, tops. some transmissions have filters as well which shall be changed as well.
JERK in a CVT ??? - either it is incorrect fluid type or it is time to change, OR Hook Up scanner to extract exact fault.
CVTs are lazy to catch up this is one reason for CVT cars to fail in KICK DOWN SHOT to keep fuel economy at par