Inflation in Argentina is still not under control. If the current number continues, they will have 30%~ yearly inflation. Argentina already saw this number before numerous time, including under Macri government.
But the real issue is, the "oficial" dollar rate is controlled by Central Bank, and it won't be for long. When, as he promised, he let the peso float totally free, we'll really know even if the inflation can continue at 30% yearly.
Let alone, together with this, the growth of this year, that will likely pressure the inflation. They managed to reduce the inflation to 2.7% monthly, while the country was in a 3% GDP recession.