Good evening Ruth and welcome back!
Thank you for reaching out to us.
I would love to help you with this topic.
As a first troubleshooting step, could you please provide us with your complete system information in a private reply using the instructions found in the following link?
https://theeventscalendar.com/knowledgebase/sharing-sys-info/
Secondly, I went to http://semecaelacasaencima.com/eventos/ and it looks like the images are of a normal size (3 images per row).
Could you send me a screenshot of what you mean ?
Best regards,
Geoff B.