You gotta practice seeing/clicking and dragging the cards, without looking at them, sort of like playing tetris, that way you can recognise the next card to move and plan your next move while you are making your current move/click etc.. I think it's called pattern recognition. Then build up speed. It takes a long time to double click each card onto the aces stack.. Practice moving/clicking the mouse, so there's just enough time to move the mouse over to the next card, stopping on the card, before your mouse clicks, not moving the mouse between the first click and second click, then getting the mouse pointer moving over to the next card, just after the second click. All while keeping the mouse pointer still, just long enough so that the computer doesn't think you are trying to drag the card.