This study examines the influence of entrepreneurial passion (EP) on venture performance, focusing on how it affects entrepreneurs' decision-making processes and the moderating role of start-up motivation (opportunity vs. necessity). Drawing on both Cognitive-Experiential Self-Theory and Contingency Theory, we hypothesize that the domains of entrepreneurial passion (EP) influence business performance via cognitive styles; however, the extent to which EP translates into performance is shaped by entrepreneurs' start-up motivations. Specifically, we argue that the effectiveness of EP in enhancing business performance through an intuitive cognitive style is more pronounced for necessity-driven entrepreneurs. Conversely, the impact of EP on business performance via a rational cognitive style is more evident among opportunity-driven entrepreneurs. Through empirical analysis of 325 Nigerian entrepreneurs, the study finds that the effect of EP on business performance is contingent on the fit between the domain of EP, the cognitive decision-making style, and the start-up motivation. The results suggest that the congruence between these elements is crucial for achieving optimal venture performance. This research provides insights into the complex interplay of emotional, cognitive, and motivational factors in entrepreneurship, suggesting that the effectiveness of EP in driving venture success is context dependent.