That's weird since this very much is a completely plain <ul>.
What OS and browser are you using? Which example is slow?
I go to examples, click on #3 "Oversized Canvas", then WebGL, then I get a blank screen.
I go back, still a blank screen.
I go back again and for a faint moment I can see the examples list and then it goes blank and the viewport becones very large because I can now scroll a lot but everything is blank.
Mobile Safari, latest iOS.
Yeah, I've been made aware that the examples don't work on iOS.
I'm guessing there's a single underlying error that's messing with the navigation etc. since I believe SvelteKit does some JS-based optimizations around navigation. I'll have to look into this.
Thanks for reporting!