You can win 10btc, 1btc, 0.1btc in 0.3 secs, but that depends on how much money you bet and what multiplier you have. It doesn't really depend on the casino for that to happen. It depends on your bets.
But to get a higher chance at winning, you should consider the casino with the lowest house edge. Though that doesn't guarantee you will win 0.1btc instantly.
How can this nothing to do with the casino itself? Each site also depends on our result although it does not really have any affection on our bet result but still it does matter and games that we played also affect our result in the end. There is no any guarantee on any gambling site because this is business with fun so in order to get some fun you should consider to pay some money to get it