As per your chart, it is indicated that his physical development and his growing years would be normal. there could be lag in his learning things but would eventually start learning slowly.

His development would be smoother and quicker and he may tend to becoming normal which will be a gradual and drawn out phase. Though you may not be fully satisfied with his educational performance, it is enough if he just passes and keeps getting qualified.

The upcoming time from mid of 2024 would be quite positive and transformation would be there. Love and care can do wonders in life and with due care he would gradually become normal.

Best Wishes.