Stable casino sites for long gaming sessions

Hi all. I often play for longer sessions, and one thing that really matters to me is stability. Some platforms work fine at first but start slowing down after a while, especially when opening different games or triggering bonus features. I also noticed that some sites behave differently on mobile compared to desktop. I’m trying to find a casino where performance remains smooth even during extended play. Has anyone tested a site that stays responsive without technical interruptions?