Set is-active already during the slide

[nickhirche]

Your slider is very cool so far - it also makes cloning better from my perspective than swiper for example as well as syncing stuff together.

But there is one thing I always notice - when a slide changes it is only switched to active when the slide has arrived - so it always seems a bit sluggish (also in your examples) that the active state is staggered.

[Webberjo]

https://splidejs.com/guides/options/#updateonmove