Background Image on IPAD not responsive

Hello!
On the IPAD some background images doesn’t look good. See attachment.
https://seminare.berufsverband-kampfkunst.de/
They appear not in the right size.
What can I do?
Holger

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Hello,

Please, provide us your admin access so we can login and check this on your side.

Thank you in advance.

Kind Regards
XTemos Studio

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