Develop finger independence by placing all five fingers of the right hand on the piano. Place your thumb on middle C and the remaining fingers on D, E, F and G. Slowly press down the thumb without moving any other finger. Then press the index finger down in the same manner. Do this for each finger and switch hands.
Play all major and minor scales daily. Use a metronome to slowly increase the speed at which you can play your scales. Start slowly and aim to increase the speed that you play your scales by two beats per minute each week.
Play major and minor arpeggios throughout the entire piano. Start on the lowest C first and play major thirds, followed by minor thirds. Then repeat this pattern on C-sharp and D.
Play finger exercises on a daily basis to increase your dexterity and ability to play quickly.
Practice increasingly difficult music each week. Practice a piece until you have learned to play it perfectly. Once learned, memorize the piece and then move on to a new piece. There are hundreds of pieces a virtuoso pianist should learn to play from memory.