The rapid growth of private higher education institutions (PHEIs) in Namibia has highlighted significant challenges in managing academic staff performance. This study explores these challenges through a qualitative, phenomenological approach, using semi-structured interviews with 19 participants, including academic staff, human resource (HR) practitioners and management. Grounded in the Ability-Motivation-Opportunity (AMO) theory and utilising thematic data analysis, the study identified key challenges, including job insecurity, resource limitations, technological divides, leadership deficiencies and inadequate performance evaluation systems. These issues contribute to a strained work environment, affecting the motivation and effectiveness of academic staff. The findings underscore the need for tailored human resource management (HRM) strategies, such as competitive compensation packages, enhanced leadership support and improved digital infrastructure. Moreover, the researchers recommend tenured positions, improving performance evaluations and managing resources effectively to mitigate these challenges. The study offers empirical insights into the complexities of academic staff management in PHEIs and provides actionable recommendations to strengthen institutional performance and reputation in Namibia's higher education sector.