PURPOSE Several counter fields are performed inefficiently. They use compute methods using length of 2many fields instead of making use of more efficient ORM methods like read_group. SPECIFICATIONS There may be a lot of clicks linked to a given link tracker. Compute the count of clicks in batch with a read_group to improve performance. Same for utm campaign mailing count performances. Some missing indexes are added to speedup queries. LINKS Task ID 2196182 PR #44662 Co-Authored-By: Victor Feyens <vfe@odoo.com> Co-Authored-By: Thibault Delavallee <tde@odoo.com>