We're using Odoo CE 12. Sometimes we have 100 lines to enter into sale orders, but after add lines one by one, the system starts to slow and shows very bad performance issue. After10 lines, you really feel that it's about to be a turtle. It seems, every line entered, onchange functions are fired for recalculation of amount total, tax…
Is there a way to speed up that process? If so, how can we achieve this?