Sama

いつもこちらの理解度を深く慮ってくださりながら、レッスンのスピードを調整してくださり、大変ありがたく感じます。また、受講します。本当にありがとうございます。

She always gives her great consideration at level of my understanding of each sentence with controlling conversation speed.
I really appreciate her lesson.

She always gives me a great lesson!
I really appreciate your support for improving my English!