tried to lazy load home images, but a better solution is to have to home version one html the lightest possible for first laod, and one rich for vuejs display

web/themes/custom/materiotheme/templates/field/image--card-small-home.html.twig

@@ -0,0 +1,20 @@
+{#
+/**
+ * @file
+ * Theme override of an image.
+ *
+ * Available variables:
+ * - attributes: HTML attributes for the img tag.
+ * - style_name: (optional) The name of the image style applied.
+ *
+ * @see template_preprocess_image()
+ */
+#}
+{%
+set classes = [
+  style_name ? 'image-style-' ~ style_name|clean_class,
+]
+%}
+{# {% set attributes['data-src'] = attributes['src'] %}
+{% set attributes['src'] = '#' %} #}
+<img{{ attributes.addClass(classes) }} />