Obviously, the ideal would be for the withdrawal to be processed as quickly as possible, the faster the better, but I also wouldn't mind waiting if the payment is secure and doesn't take more than 1 day.
This are cryptocurrencies gambling sites, there withdraw supposed to be very fast and not technical excuses should the gambling sites make. 1 day before processing the withdrawal is too late and that would be bad of a gambling site.
Also, when they ask you for KYC, some sites take a long time to validate it, and this should be processed quickly so that the customer doesn't lose interest in the site.
I prefer sites that demand for KYC before gambling on the site. I noticed there are many crypto gambling sites that have this bad behaviour of letting new users gamble but not able to withdraw until they get verified. I do not like that as it is like something shady.