Globalisation has made the learning of foreign language very important, however, to provide effective teaching and learning of foreign languages to achieve better performance (anticipated targets) is necessary to understand the factors influencing teaching, learning, and attainment of learning targets of students. Based on factors such as knowing of course content, knowing of assessment schedule, frequent assessment, feedback after assessment, the adoption of adaptive learning system, and individualized learning environment the paper examines their impact on effective teaching and learning as well as better performance of learners at RUDN University. Using sum of squares regression model, it was found that knowing of course content and frequent assessment positively influence effective teaching and learning, while frequent assessment, feedback after assessment, and an individualised learning environment promote better performance of students by helping attain anticipated targets during their foreign language course. This is instructive to stakeholders to take the necessary steps required to help enhance teaching, learning and performance of learners.