The main question is, why was the BTC coin chosen as the main coin for deposits? After all, we all know that this network takes a large Commission per transaction and works quite slowly.
Nobody is making you use Bitcoin if you don't want to. You have alternative coins that you can use if you are worried about waiting to long for your Bitcoin to get confirmed. You are free to use Bitcoin Cash, Ethereum, Litecoin, Dogecoin and Tether. But if you believe the Bitcoin network is slow, take a look at what has been going on with Ethereum lately and how the fees have skyrocketed.
I want to warn newcomers that casinos are gambling games that are highly addictive, so be careful.
Don't gamble if you can't afford it, and if you have a problem seek professional help.