Crypto casinos let players use digital currency, so funds can move faster but...

https://varimail.com/articles/what-does-network-congestion-mean-when-withdrawing-from-a-crypto-casino/

Crypto casinos let players use digital currency, so funds can move faster but players manage their own wallets and private keys. Traditional online casinos use regular money, where your £20 stays £20 without worrying about keys