Isn't it impossible for communist governments to successfully control a countries economy better than a free market capitalist system?

No, it is not impossible for communist governments to successfully control a country's economy better than a free market capitalist system. Communist governments may be less effective than free-market capitalist systems at incentivizing investment and innovation, but they can be successful at allocating resources to ensure adequate supplies of basic goods and services and providing a basic welfare safety net while minimizing inequality. In addition, some economists argue that economic planning in communist countries can better ensure the long-term economic sustainability of a country by avoiding bubbles and having a more predictable and stable economy.