I've visited Nitrobetting site, personally it's not that bad and I don't experience or feel any off in the theme and design and they do load fast but compared to top gambling sites like Stake, they definitely a little bit left behind and regarding Coinroyale, they can definitely improve but I've seen way more bad UI than this actually this is not actually bad at all. But more importantly as long as the platform can be easily accessible and can easily be understand by player and it all works, there's nothing to get worried about.