Usually the officers set the pace and the members go along with the efficiency or lack of efficiency of the presiding officer. What a joy it is to the members when a president has prepared and takes care of the business in the allotted time.
Most organized groups fit into two categories, social or business.
Each organization has the right to decide in what manner they will be governed. A small organization with from 12-30 members does not need strict parliamentary rules to control the meeting and expedite the business. The smaller the group the less formality is required. A small group will perhaps meet in members homes and mayor may not require dues. My advice to these groups is to keep the meetings social and do not adopt any bylaws or a parliamentary authority.