Facet Block : only 10 items are shown
You can manually edit this limit in the search_api_views module source file.

You find this here in the commerce kickstart bundle:

/profiles/commerce_kickstart/modules/contrib/search_api/contrib/search_api_views/includes/display_facet_block.inc

Then you correct the limit of 10 on line 167 of display_facet_block.inc

$limit = empty($this-&gt;view-&gt;query-&gt;pager-&gt;options['items_per_page']) ? 100