Better to get it serviced. May be evaporator is chocked and doesn't allow fan to throw full air. In such case cooling will be ok but with less throw. Ac technician will charge maximum 500 to wash it by opening glove box and few other panels. He will inspect and let you know. In worse case, dismantling of complete unit will be required. This will cost you more money. Get input from 2-3 reputed ac wala. Don't rely on one person
