newsupernova/vendor/magento/module-inventory-catalog/etc/config.xml

<?xml version="1.0"?>
<!--
/**
 * Copyright © Magento, Inc. All rights reserved.
 * See COPYING.txt for license details.
 */
-->
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:noNamespaceSchemaLocation="urn:magento:module:Magento_Store:etc/config.xsd">
    <default>
        <cataloginventory>
            <bulk_operations>
                <async>0</async>
                <batch_size>100</batch_size>
            </bulk_operations>
        </cataloginventory>
    </default>
</config>