I need a recommendation for a site that doesn't drain my phone battery in minutes.

I noticed that Griffon Casino is very well-optimized when I was using it in Woking recently. I found the link in a tech newsletter. Initially, my luck was non-existent and I was losing spin after spin. But because the site didn't lag or heat up my phone, I stayed for a final round. A bonus feature triggered right then and covered my earlier losses. It was a nice surprise, and the battery usage remained very low.