I can understand for the carousel settings but what about the header and the whole look of the website on mobile. This does not look great. There should be a separate layout for the mobile as other themes have.
When I move the screen up, the slider reduces in size. Then when I zoom out, half of the screen is white and the whole content shifts to left side.
For your mobile, I found the issue from the carousel image, that doesn't responsive on the mobile. That is the reason you see the white space on the mobile. I have changed another carousel image to help you display it better on the mobile.