I like your game, feels like Adventure Capitalist, but 1 suggestion is that the slider can be improve, as when i press the speed to a certain point, the slider will start to move really fast, maybe when it reaches a certain time, just have it play a simple animation, the player will not really care when it hit 0%, since money is increasing every second from then on. rest of the game is understandable and simple to play. also if possible, add more effects to the game, like give the buttons more color when highlighted.
