(v4) Slider movement is janky on Safari 18.6 on some Storybook stories

[nerdyman]

The slider movement is really janky on the "Images` Story on Safari iOS. Others work fine so might be that the images are too big. Needs investigation.

Seems to be caused by the left/top on the handle container.

Works fine on 26 but is quite laggy on 18.6. Would be good to improve it if possible, may be a translate3d or backface-visibility issue.

• https://stackoverflow.com/questions/30152029/complex-animation-on-safari-causes-sluggish-performance
• https://stackoverflow.com/questions/26546970/css3-animations-slow-on-ios-devices