Signing up is one of the shorter casino flows. Email, password, name, date of birth, address, phone. Maybe two minutes if you have your details to hand and you do not fight the autofill.
Near the end of registration you choose between the 200% deposit bonus and the cashback-only route. I would only pick the bonus for slots. Blackjack and roulette players get cleaner value from cashback.
KYC will catch you out if you are sloppy at registration. The name on the account has to match the name on your passport exactly, the date of birth has to be right, and you must not use a VPN. Each of those is a manual review that adds a day to the first withdrawal.
Keep a passport scan and a recent utility bill ready before you start. Upload them after the first deposit while you are still logged in, so verification is finished before the first withdrawal request.