Overcoming the failure of SMEs has been an important research topic. The critical research finding is that it has verified the essential elements of performance improvement. We presented a solution to the research question, "Is there a causal relationship between the effect on SMEs' success on capacity and business performance?". We analyzed whether the competence of SMEs had a mediating effect between success variables and performance. Secondary effects were empirically studied by converting independent variables to Higher-Order Component (HOC). The second-order variable of management influenced financial, nonfinancial, and technical performance, and the secondorder variable of technology affected technical performance. As a result of introducing demographic variables as a controlling variable for performance, gender, and year of establishment showed a moderating effect on technical and non-financial performance. We expect to contribute to practical application to SME CEOs and government policymakers, support organizations, academia, and industry. effect. Third, empirically verify the impact of competency on business performance. Fourth, using Partial Least Square-Structural Equation Modeling (PLS-SEM), validate the variables affecting the SMEs' performance, and verify causal relationships. Fifth, identifying the degree and difference of demographic variables on performance and providing policymaking results to revitalize SMEs and improve performance. Sixth, applying the Higher-Order Component (HOC) to the five sub-components of the capabilities, the independent variable, validates the second-order component's effect on competency and performance. We have been finding out factors and variables, exploring the variables, deriving the key variables, finalize the research model, and evaluating by PLS-SEM. The theoretical research systematically analyzed and organized prior studies related to variables on SMEs' business performance. Literature reviews have identified the disadvantages, problems, and limitations of previous studies. The previous research issues are as follows Entrepreneurs' capabilities can be used as a competitiveness source because competitors do not easily replicate them. Therefore, research has focused on its competitiveness and performance [1],[2]. Besides, previous studies have provided a wide range of results investigating the relationship between capabilities and business performance [3]. For example, it described that entrepreneurial competency positively impacts the company's performance [4]. Meanwhile, found a weak relationship between entrepreneurial competency and corporate performance [5]. On the other hand, it found that a company's capabilities do not significantly affect its performance [6]. In this context, noted that further research on this relationship is needed [7]. Few empirical studies focused on the link between individual-level competencies and organization-level competitive advantage through potential organization-level mediators. Two recent studies examined the association ...