The native slider has some limitations. I recommend finding a good fixed-pixel height on the main component vs using 100%. Choose a height that accommodates the slide with the most content. In your example screen grabs, I set the pixel height of the slider to 550 on desktop query. Then find the ideal fixed pixel height at the smaller viewports. I recommend using the width adjuster to test if all slide content works at the chosen pixel height. Attached screen grab showing the handle.
Then, remove the absolute position shift you’ve added to the slider nav.