Thank you very much for choosing our theme and for contacting us.
First of all, navigate to the Theme settings > Shop and disable “Masonry grid” if it does not help, navigate to Appearance > Customize > Woocommerce > Product image and set the size and cropping for the images.
You need to upload bigger images at least 300 px in width to solve the problem as this small image is spread to 100% of width in the result we have this heigh proportionally.
Please add this custom CSS to the Theme Settings > Custom CSS:
.product-grid-item .product-element-top a img{
width:auto;
height:auto;
}
This is the only way out and as you see the images is still higher than others in order to make it of the same height you need to set fixed width of the image – 77px
If you want to make all the images equal, you need to set the width of the smallest image.