Hi,
Please try to restrict the image size in the settings. Kindly visit this doc for instructions: How to customize the image sizes - HivePress Help Center
Please also note that the block height of each listing varies depending on the content in it, so unfortunately, there is no way to change it. You can check this topic if you need to change listing card size Change height of listing card - #2 by andrii
I hope this is helpful to you.