Hello,
Now I have checked your site, and the slider image is showing in full height, which you have uploaded.
See Screenshot for clarification: https://ibb.co/PvR9Md5F
You can adjust the slider height from Slides > Sliders > Edit the Slider.
Reduce the Slide Height as needed for Desktop, Tablet, and Mobile.
Please refer to this screenshot: https://snipboard.io/UHLEMv.jpg
Also, you can adjust more settings by following these steps:
Navigate to Slides > Edit Slide > Scroll down to the bottom of the slide editor.
Check the Slide Settings section, where you can configure their position: https://ibb.co/9bpLVTr
Best Regards,