while in live casino, like playing roulette there is 15sec gap in every spin, in that 15sec i can think something, or sizing bets and close my gambling session for that day.
and also live casino's dealer is front of me i can see we are cheated or not, but i don't know if they use rigged roulette or not.
I don't think live casino is rigged especially if it comes from a reputable source. you said that there is a 15 sec gap every spin but have you forgot that the provably fair roulette won't star if you don't click "roll" it means you have more than 15 seconds to think or size your bets but maybe what you are thinking is the autobet? I think there's a gambling site that is provably fair and also there's a gap in every spins.