If you don't want to have to click to continue the game, you can also increase the delays observed before ending the bidding or clearing away the cards, as well as those observed after a bid or a card. To do this, open the general preferences on the Timing / Delays page, and enter new values for the different delays. These are expressed in tenths of a second. Value 10 corresponds to 1 second, value 20 to 2 seconds, etc.
Note that you are not allowed to cancel an opponent's choice, because it would be cheating. But when it's your turn to play, you can, by clicking on the right mouse button, see the bidding if you have not yet played, or see the last trick in other cases.