Launch migration via UI and with background drush process

Batch API Process is slow, via the UI how to launch migration with a background drush process

I need to run huge migrations, with weighting processes. I don't have any SSH access to the server to directly launch drush commands.

After several searches, I saw these posts : https://www.drupal.org/node/1806824 → / https://www.drupal.org/node/1958170 → . But on the latest versions of migrate_tools I don't see how to configure the drush config point mentioned.

From the UI, Can I launch a migration with a drush process ?

Thanks for your replies.