On a dynamic shop floor, prioritising human tasks is essential for enhancing productivity and effectiveness, and for reducing operating costs. This study examines the use of extended reality (XR) as a tool to optimise task management in a manufacturing company. By a literature review and a case study, a task prioritisation algorithm is developed and integrated with image recognition and XR technologies. This leads to the creation of an interactive system that allows workers to intuitively and efficiently visualise and select the activities they need to perform. The approach, which combines a prioritisation algorithm with immersive visualisation, facilitates real-time decision making, and helps to reduce cognitive load and to improve individual worker performance. Its preliminary results indicate that implementing XR in task management enhances execution accuracy and shortens decision-making times.