diff --git a/lib/hooks.php b/lib/hooks.php
index 5ce5026..d89d1a3 100644
--- a/lib/hooks.php
+++ b/lib/hooks.php
@@ -138,6 +138,28 @@ add_filter(
     }
 );
 
+/**
+ * Remove unused or replaced core blocks
+ *
+ * @return array List of allowed block types
+ */
+add_filter(
+    'allowed_block_types_all',
+    function () {
+        // get all the registered blocks
+        $blocks = \WP_Block_Type_Registry::get_instance()->get_all_registered();
+
+        // then disable some of them
+        unset( $blocks['core/media-text'] );
+        unset( $blocks['core/calendar'] );
+        unset( $blocks['core/buttons'] );
+        unset( $blocks['core/search'] );
+
+        // return the new list of allowed blocks
+        return array_keys( $blocks );
+    }
+);
+
 /**
  * WP Cleanup
  */
@@ -241,6 +263,13 @@ add_action(
     }
 );
 
+/**
+ * Disable Gravity Forms theme CSS
+ */
+add_filter( 'gform_disable_css', '__return_true' );
+add_filter( 'gform_disable_form_theme_css', '__return_true' );
+add_filter( 'gform_disable_form_legacy_css', '__return_true' );
+
 /**
  * Filters the email address used as the sender in outgoing emails.
  *